& EPA
          United States
          Environmental Protection
          Agency
Office of Air Quality
Planning and Standards
Research Triangle Park, NC 27711
EPA-453/R-97-009b
July 1997
          Air
          Hospital/Medical/Infectious
          Waste Incinerators:
          Background Information for
          Promulgated Standards and
          Guidelines -

          Regulatory Impact Analysis
          for New and Existing Facilities

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                                      EPA-453/R-97-009b
"O
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           Hospital/Medical/Infectious
         Waste Incinerators: Background
     Information for Promulgated Standards
       and Guidelines - Regulatory Impact
     Analysis for New and Existing Facilities
                   US.EnvironmentamotecV.on Agency
                      U.S. EPA
                 OAQPS, AQSSD, ISEG

                      July 1997

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                                     DISCLAIMER

This report is issued by the Office of Air Quality Planning and Standards, U.S. Environmental
Protection Agency. Mention of trade names and/or commercial products is not intended to
constitute endorsement or recommendation for use.  Copies of this report are available free of
charge to Federal employees, current contractors and grantees, and non-profit organizations ~ as
supplies permit ~ from the Library Services Office (MD-35), U.S. Environmental Protection
Agency, Research Triangle Park, North Carolina 27711 (919-541-2777) or, for a nominal fee,
from the National Technical  Information  Service, 5285 Port Royal Road, Springfield, Virginia
22161 (703-487-4650).

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                              TABLE OF CONTENTS

                                                                      Page Number

I EXECUTIVE SUMMARY
      1.1    Introduction and Background                                       1
      1.2    Regulatory Options and Analysis Scenarios                            2
      1.3    Economic Impacts                                                 3
      1.4    Benefits Analysis                                                  5
      1.5    Small Business Impacts                                             7

II  BACKGROUND
      2.1    Regulatory Background                                            8
      2.2    Definition of Hospital/Medical/Infectious Waste                        8
      2.3    Industries Generating Hospital/Medical/Infectious
             Waste and/or Operating HMTWI                                     9

III  NEED FOR THE REGULATION
      3.1    Market Failure                                                    12
      3.2    Environmental Factors                                              13
      3.3    Legal Requirements                                                13

IV  REGULATORY OPTIONS
      4.1    Regulatory Options for Existing Sources                              13
      4.2    Regulatory Options for New Sources                                 14
      4.3    Analysis Scenarios                                                 16

V  ECONOMIC IMPACTS
      5.1    Methodology - Existing Sources                                     19
      5.2    Methodology - New Sources                                        20
      5.3    Industry-wide Annualized Control Costs - Existing Sources              21
      5.4    Industry-wide Annualized Control Costs
             - Existing and New Sources                                         26
      5.5    Industry-wide Economic Impacts - Existing Sources                     26
      5.6    Industry-wide Economic Impacts - Existing and New Sources            33
      5.7    Model Facility Analysis                                             36
             5.7.1  Model Plant Costs - Existing Sources                           37
             5.7.2  Model Plant Costs - New Sources                             41
      5.8    Facility Specific Impacts - Existing Sources                            41
      5.9    Facility Specific Impacts - New Sources                               48
                                        111

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                            TABLE OF CONTENTS
                                   (continued)
                                                                  Page Number
VI  BENEFITS ANALYSIS
      6.1    Emission Changes                                              53
      6.2    Hazardous Air Pollutants                                        54
      6.3    Dioxins                                                      54
      6.4    Criteria Air Pollutants                                          57
      6.5    Qualifications                                                 60
      6.6    Benefit-Cost Comparison                                        61

VII  SMALL' BUSINESS IMPACTS AND UNFUNDED MANDATES
      7.1    Small Business Impacts                                         62
      7.2    Unfunded Mandates                                            64
                                       IV

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                                  LIST OF TABLES

                                                                            Page No.

Table 1       Number of Facilities in Industries Generating Hospital/
             Medical/Infectious Waste and/or Operating HMIWI                      11

Table 2       Number of Existing and New Medical Waste Incinerators                 12

Table 3       Regulatory Options For Existing HMTWI                               15

Table 4       Regulatory Options For New FIMIWI                                  17

Table 5 A     Industry-wide Annualized and Capital Control Costs
             for Industries Operating On-site Medical Waste Incinerators:
             Existing Sources  Scenario A: No Switching                           22

Table 5B     Industry-wide Annualized and Capital Control Costs
             for Industries Operating On-site Medical Waste Incinerators:
             Existing Sources  Scenario B:  Switching With Waste Segregation        23

Table 5C     Industry-wide Annualized and Capital Control Costs
             for Industries Operating On-site Medical Waste Incinerators:
             Existing Sources  Scenario C:  Switching With No Waste Segregation     24

Table 6       Industry-wide Annual Costs for Industries Not Operating
             On-site Medical Waste Incinerators:  Existing Sources                  25

Table 7A     Industry-wide Annualized Control Costs for Industries Operating
             On-site Medical Waste Incinerators: Existing and New Sources
             Scenario A: No Switching                                           27

Table 7B     Industry-wide Annualized Control Costs for Industries Operating
             On-site Medical Waste Incinerators: Existing and New Sources
             Scenario B: Switching With Waste Segregation                         28

Table 7C     Industry-wide Annualized Control Costs for Industries Operating
             On-site Medical Waste Incinerators: Existing and New Sources
             Scenario C: Switching With No Waste Segregation                     29

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Table 8


Table 9


Table 10


Table 11


Table 12


Table 13

Table 14


Table 15

Table 16


Table 17


Table 18

Table 19


Table 20
                                  LIST OF TABLES
                                      (continued)
Industry-wide Annual Costs for Industries Not Operating
On-site Medical Waste Incinerators: Existing and New Sources

Hospital/Medical/Infectious Waste Incineration Industry-wide
Price Impacts - Existing Sources

Hospital/Medical/Infectious Waste Incineration Industry-wide
Output, Employment and Revenue Impacts - Existing Sources

Hospital/Medical/Infectious Waste Incineration Industry-wide
Price Impacts - New and Existing Sources
                                                                           Page No.
30
31
32
34
Hospital/Medical/Infectious Waste Incineration Industry-wide
Output, Employment and Revenue Impacts - New and Existing Sources    35
Model Facility Definitions

Control Costs for Model HMIWI:  Existing Sources
Scenario A: No Switching

Annual Costs  of Switching for Model HMIWI Scenarios B and C

Annual Costs  for Model Facilities Not Operating On-site HMTWI:
Existing Sources

Control Costs for Model HMIWI  New Source Scenario A:
No Switching

Annual Costs  of Switching for Model HMIWI

Annual Costs  for Model Facilities Not Operating On-site HMIWI:
New Sources

Hospital/Medical/Infectious Waste Incineration Per Facility
Impacts Assuming No Switching and Onsite Incineration
 - Existing Sources
37


38

39


40


42

42


43



44
                                          VI

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                                   LIST OF TABLES
                                       (continued)

                                                                             Page No.

Table 21      Hospital/Medical/Infectious Waste Incineration Per Facility
              Impacts Assuming Switching from Onsite Incineration to
              Commercial Disposal Alternatives - Existing Sources                    45

Table 22      Hospital/Medical/Infectious Waste Incineration Per Facility
              Impacts For Firms that Utilize Offsite Waste Incineration
              - Existing Sources                                                   47

Table 23      Hospital/Medical/Infectious Waste Incineration Per Facility
              Impacts Assuming No Switching and Onsite Incineration
              - New Sources                                                      49

Table 24      Hospital/Medical/Infectious Waste Incineration Per Facility
              Impacts Assuming Switching from Onsite Incineration to
              Commercial Disposal Alternatives - New Sources                        50

Table 25      Hospital/Medical/Infectious Waste Incineration Per Facility
              Impacts For Firms that Utilize Offsite Incineration - New Sources         52

Table 26      HAP Baseline and Emission Reduction Estimates
              for Existing Sources                                                  55

Table 27      HAP Baseline and Emission Reduction Estimates
              for New Sources                                                     55

Table 28      Dioxin Baseline and Emission Reduction Estimates
              for Existing Sources                                                  56

Table 29      Dioxin Baseline and Emission Reduction Estimates
              for New Sources                                                     56

Table 30      Criteria Pollutant Baseline and Emission Reduction Estimates
              for Existing Sources                                                  57

Table 31      Criteria Pollutant Baseline and Emission Reduction Estimates
              for New Sources                                                     58
                                           vn

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                                LIST OF TABLES
                                    (continued)

                                                                        Page No.

Table 32     Monetized Benefits for HMIWI Regulatory Options                   59

Table 33     Net Benefits (Costs) for Existing Sources                            61

Table 34     Net Benefits (Costs) for New Sources                               62
                                        Vlll

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I      EXECUTIVE SUMMARY

1.1    Introduction and Background

On February 27, 1995, the United States Environmental Protection Agency (EPA) published the
proposed Emission Guidelines (EG) for existing hospital/medical/infectious waste incinerator(s)
(HMIWI) and new source performance standards (NSPS or standards) for new
hospital/medical/infectious waste incinerators. The proposal was the result of several years of
effort reviewing available information to fulfill the Clean Air Act requirements. Following
proposal, a large number of comment letters were received, some including new information and
some indicating that commenters were in the process of gathering information for the EPA to
consider. The large amount of new information that was ultimately submitted addressed every
aspect of the proposed standards and guidelines, including: the existing population of HMIWI; the
performance capabilities of air pollution control systems; monitoring and testing; operator
training; alternative medical waste treatment technologies; and the definition of medical waste. In
almost every case, the new information has led to different conclusions. One change made to the
final rule as a result of comments regarding the definition of medical waste has been a change in
the title of the rulemaking.  For reasons discussed in other documents, the official title of the
rulemaking is "Hospital/Medical/Infectious Waste Incinerators" or "HMIWI." However, for
purposes of this document, the terms "HMIWI" and "MWI" should be viewed as interchangeable.

The purpose of this revised regulatory impact analysis (RIA) is to reassess the cost and benefits of
new regulatory options that have been developed for existing and new HMIWI.  The assessment
of the costs and benefits of four EG control options for existing HMIWI and three control options
for new sources were originally evaluated in Medical Waste Incinerators  - Background
Information for Proposed Standards and Guidelines: Regulatory Impact Analysis for New and
Existing Sources'.  An addendum was subsequently prepared to estimate the potential economic
impacts of a fifth control option for existing sources and a third for new sources.2'3  The
economic impacts, benefits, and comparison of cost and benefits presented in this document
should be viewed as a revision to the original regulatory impact analysis document.

This report has been prepared to comply with Executive Order 12866, which requires federal
agencies to assess costs and benefits of each significant rule that is proposed or promulgated.  The
promulgated regulation for hospital/ medical/ infectious waste incinerators meets the definition of
a significant rule. The Agency has assessed the costs and benefits of the rule, as presented in this
RIA.

The principle requirements of the Executive Order are that the Agency perform an analysis
comparing the benefits of the regulation to the costs that the regulation imposes, that the Agency
analyze alternative approaches in the development of the rule, and that the need for the regulation
be identified. Wherever possible, the costs and benefits of the rule are to  be expressed in
monetary terms. This RIA is organized to meet the requirements of the Executive Order.

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1.2    Regulatory Options and Analysis Scenarios

This RIA evaluates the benefits and economic impacts of six regulatory options for the emission
guidelines and three regulatory options for the new source performance standards.  The floor for
small existing HMIWI requires good combustion; add-on wet scrubbing systems would not be
necessary to meet the MACT floor. For medium existing HMIWI, the MACT floor requires good
combustion and a moderate efficiency wet scrubber.  The MACT floor for large existing HMIWI
requires good combustion and a high efficiency wet scrubber.

Having identified the emission control technology most existing HMIWI would likely install to
meet the MACT floor emission limits, the EPA also reviewed the performance capabilities of
other emission control technologies that would reduce emissions by an amount greater than the
MACT floor level of control.  This process enables the EPA to identify more stringent regulatory
options which could be selected as MACT.  The regulatory options are a combination of the
various emission guidelines the EPA believes merit consideration as MACT for existing HMTWI.
These regulatory options are constructed only for the purpose of organizing and structuring an
analysis of the cost, environmental, energy, and economic impacts associated with determining or
selecting MACT for existing HMIWI.

The MACT "floor" defines the least stringent emission standards the EPA may adopt for new
HMIWI. However, the Clean Air Act also requires EPA to examine alternative emission
standards (i.e., regulatory options) more stringent than the MACT floor.

Based on the new information submitted to the EPA  following proposal of the MACT emission
standards for new HMIWI, new MACT floor emission levels were developed for new small,
medium, and large HMTWI.  Next, the EPA determined the emission control technologies new
HMIWI would probably need to meet regulations based on these floor emission limits.  The floor
for small new HMIWI requires good combustion and moderate efficiency wet scrubbers.  For
medium new HMIWI, the MACT floor requires good combustion and a combined wet/dry
scrubbing system without activated carbon injection.  The MACT floor for large new HMTWI
requires good combustion and a combined wet/dry scrubbing system with activated carbon
injection.

In addition to identifying the emission control technology most new HMIWI would likely install
to meet the MACT floor emission limits, the EPA also reviewed the performance capabilities of
other emission control technologies that would reduce emissions by an amount greater than the
MACT floor level of control. When considering the  various regulatory options for the EG and
NSPS, it is important to note the following.

First, the EG for existing HMIWI and the NSPS for new sources will not include requirements to
use a specific emission control system or technology; the EG and NSPS will only include emission
limits, which may be met by any means or by any control system or technology of the HMTWI
owner's or operator's choice.  Second, to the extent  possible, it is an objective of the EPA to

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adopt emission limits in the EG that can be met through the use of several emission control
systems or technologies.

In the analysis of costs, economic impacts, and benefits discussed in this report, selection of an
alternative form of medical waste treatment and disposal by a health care facility, rather than
installing a new FDVflWI, is referred to as "switching." Switching was incorporated into the cost
analysis at proposal and was the basis for the conclusion at proposal that adoption of the
proposed  emission standards could lead to as many as 80 percent of health care facilities that
might have installed HMIWI  to choose an alternative means of medical waste treatment and
disposal.  However, the economic impacts presented with the proposed MACT for new sources
were only evaluated using the costs under a "no switching" scenario. Although the RIA presented
a qualitative discussion of the likely possibility of facilities that might have installed on-site
HMTWI deciding to switch to alternative treatment and disposal methods, the economic impacts
under a switching scenario were not quantified due to time constraints.

Switching has now been incorporated into the cost, economic impact, and benefit analysis. Three
scenarios are evaluated:  one scenario which ignores switching, and two scenarios which consider
switching. Scenario A assumes that each existing and new HMIWI will comply with the
appropriate regulatory option by having the appropriate emission control equipment installed.
This scenario most likely overstates national costs and economic impacts and therefore should not
be viewed as representative of the emission guidelines and new source emission standards. It is
included only to fulfill the goal of providing a complete analysis.

Switching scenarios B and C  are considered more representative of the cost and economic
impacts of the MACT for existing and new HMIWI.  Both scenarios assume switching occurs
when the cost associated with purchasing and installing the air pollution control technology or
system necessary to comply with the MACT emission standards (i.e., a regulatory option) is
greater than  the cost of using an alternative means of treatment and disposal.  The difference
between the  two scenarios is  the assumption of whether or not the medical waste stream is
separated.

1.3    Economic Impacts

Industry-wide impacts presented in the RIA include estimates of the change in market price for
the services provided by the affected industries, the change in market output or production, the
change in  industry revenue, and the change in affected labor markets in terms of the number of
employees lost. For the EG,  industries that generate medical waste (hospitals, nursing homes,
etc.) are expected to experience average price increases in the range of 0 to 0.14 percent,
depending on the industry, regulatory option, and scenario analyzed.  These industries are
expected to experience output and employment impacts in the range of 0 to -0.18 percent. In
addition, revenue impacts for these industries are expected to range from an increase of 0.05
percent to a  decrease of 0.04 percent. An increase in industry revenue will occur if demand for
the industry's service is relatively price-inelastic, i.e., between -1 and 0.  Such a price elasticity

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indicates that output is not very responsive to a change in price, specifically that the percentage
decrease in output will be less than the percentage increase in price.  Since revenue is the product
of price and output, a less than proportional change in output compared to price means that total
revenue will increase.

For the NSPS the industry-wide impacts represent the combined, or cumulative, effects of both
the NSPS for new sources and the EG for existing sources. Control costs from the NSPS and EG
are accumulated in order to account for market adjustments that would first occur after
implementation of the EG. Industries that generate medical waste (hospitals, nursing homes, etc.)
are expected to experience average price increases in the range of 0 to 0.16 percent, depending on
the industry, regulatory option, and scenario analyzed. These industries are expected to
experience output and employment impacts in the range of 0 to -0.21 percent. In addition,
revenue impacts for these industries are expected to range from an increase of 0.05 percent to a
decrease of 0.05 percent.

The estimated average price increase for the commercial medical waste incineration industry is 2.6
percent for the EG, regardless of the regulatory option (control requirements for commercial
HMIWI do not vary by regulatory option).  When the EG and NSPS are costs are aggregated, the
price increase for commercial HMIWI becomes 4.1  percent.  These price increases are considered
achievable because of the cost advantage (i.e., lower cost per ton of waste burned) - due to
economies of scale - that commercial HMIWI have over smaller on-site HMIWI.

Impacts were also estimated at the facility level by employing the concept of the model facility
(i.e., by defining key parameters to describe typical  facilities in the affected  industries).  The vast
majority of facilities impacted by the regulation are those that send their medical waste off-site to
be incinerated and will have to pay more for commercial incineration.  For the EG and NSPS, all
impacts on these facilities are minuscule. At the most, the increased cost of commercial
incineration could be recovered with a price increase of only 0.03 percent.  For facilities that
operate on-site HMIWI ("HMIWI operators"), impacts are also generally insignificant. Either the
cost of controls or the cost of switching to an alternative medical waste treatment and disposal
method could be recovered with a price increase that does not significantly exceed the market
price increase.

Two types  of HMTWI operators may not be able to switch to an alternative, however:
commercial HMTWI operators, because their line of business is commercial incineration; and
small, rural, remote HMIWI (defined as more than 50 miles away from an SMSA and burning less
than 2,000  pounds of medical waste per year), which may not have access to waste hauling and/or
commercial incineration services.

Under the EG, three of the 59 commercial  incineration facilities operating the 79 commercial
HMTWI in  the HMIWI inventory were found to be  significantly impacted by the regulation (under
all six regulatory options). These facilities may not have to shut down, though, considering that
they are completely uncontrolled in the baseline and therefore may currently enjoy a cost

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advantage over their competitors (most of which are at least partially controlled in the baseline),
and that the regulation will bring about - due to switching away from on-site incineration - an
increase in the demand for commercial incineration services.

For the NSPS, only 10 new commercial HMIWI are projected over the next five years and could
potentially be significantly impacted by the regulation.  A "significant impact" does not necessarily
imply closure or the need to cancel plans to open up, or expand, a facility. For example,
operators of small, remote on-site HMIWI may still have switching opportunities.  As the
commercial incineration industry continues to grow (with additional impetus being provided by
the EG and NSPS), it is possible that services will be extended to remote, isolated areas that are
currently not served.  On-site autoclaving is another possible treatment alternative.  If a facility
had planned to invest in a new HMIWI, it stands to reason that an on-site autoclave unit of
comparable cost would be affordable. Additionally, a facility that had planned - by virtue of
operating an on-site HMTWI - to open in a remote area without access to commercial incineration
services, might be able to reconsider its location decision, and locate instead in an area with such
access.

Impacts are not significant for small, rural, remote HMIWI operators under regulatory options
one and two of the EG. Under regulatory options three through six of the EG, on the other hand,
some of these facilities are significantly impacted and might therefore have to  shut down. Few, if
any,  of the projected 85 new small on-site HMTWI over the next five years, are likely to be
significantly impacted by the regulation (under all three regulatory options) for reasons previously
stated.

The RIA examines industries that are directly impacted by the regulation, namely industries that
generate or treat medical waste. Secondary impacts such as those on air pollution device vendors
and HMTWI vendors were not evaluated due to data limitations. However, it can be said that air
pollution device vendors are expected to experience an increase in demand for their products due
to the regulation.  The regulation is also expected to increase the demand for commercial HMIWI
services. Due to economies of scale, however, there is likely to be a demand shift from  smaller
incinerators to larger incinerators.  Therefore, vendors of small HMIWI may be adversely affected
by the regulation.

1.4   Benefits Analysis

Implementation of the NSPS and EG for HMIWI is expected to reduce emissions of hazardous air
pollutants, dioxin/furan, and criteria air pollutants.  Reduction in a variety of hazardous  air
pollutants including cadmium (Cd), hydrochloric acid (HC1), lead (Pb), and mercury (Hg) is
expected as a result of the regulation.  Dioxin/furan emissions are also expected to be reduced. In
addition, decreases in the following criteria air pollutants are anticipated: paniculate matter (PM),
sulfur dioxide (SO2), carbon monoxide (CO), and nitrogen oxides (NOJ. Air benefits resulting
from the air quality improvements associated with this regulation include a reduction in  adverse
health effects associated with inhalation of the above pollutants as well as improved welfare

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effects such as improved visibility and crop yields.

While the Agency believes that the health and environmental benefits of this rule are quite
significant, the EPA is not currently able to quantitatively evaluate all human and environmental
benefits associated with the rule's air quality improvements, and is even more limited in its ability
to assign monetary values to these benefit categories.  Categories that are not evaluated include
several health and welfare endpoints (categories), as well as entire pollutant categories.  The
quantitative assessment of the benefits associated with the rule is limited to the monetized value of
PM emission reductions.  Total monetized benefits for the combined reductions associated with
the EG and NSPS for option 1 is $5.2 million under scenario B and $4.4 million under scenario C.

A qualitative discussion of the pollutants that do not have a monetary benefit value shows the
significance of other benefits achieved by the rule.  Emission reductions of Cd, Pb, HC1, and Hg
are expected to occur as a result  of the HMIWI rule.  Health effects associated with exposures to
Cd and Pb include probable carcinogenic effects and respiratory effects associated with exposure
to Cd, HC1, and Hg. The HAPs emitted from HMIWI facilities have also been associated with
effects on the central nervous system, neurological system, gastrointestinal system, mucous
membranes, and kidneys.

Reduction in emissions of dioxin/furan are expected as a result of the HMIWI rule. Exposure to
dioxin/furan has been linked to reproductive and developmental effects, changes in hormone
levels, and chloracne. Toxic Equivalent Quantity, or TEQ, has been developed as a measure of
the toxicity of dioxin/furan. TEQ measures the more  chlorinated compounds of dioxin/furan and
thus provides a better indicator of the part of dioxin/furan that has been linked to the toxic effects
associated with dioxin/furan.  Unfortunately, quantitative relationships between the toxic effects
and exposure to CDD/CDF and TEQ have not been developed. Therefore, quantitative estimates
of the health effects of dioxin emission reductions are not estimated.

Emission reductions are also anticipated for criteria air pollutants. The health effects associated
with exposure to PM include premature mortality as well as morbidity. The morbidity effects of
PM exposure have been measured in terms of increased hospital and emergency room visits, days
of restricted activity or work loss, increased respiratory symptoms, and reductions in lung
function.  The welfare  effects of PM exposure include increased soiling and visibility degradation.
SO2 has been associated with respiratory symptoms and pulmonary function changes in exercising
asthmatics and may also be associated with respiratory symptoms in non-asthmatics.  In addition
to the effects on human health, SO2 has also been linked to adverse welfare effects, such as
materials damage, visibility degradation, and crop and forestry damage.  CO affects the oxygen-
carrying capacity of hemoglobin and, at current ambient concentrations, has been related to
adverse health effects among persons with cardiovascular and chronic respiratory disease. Both
congestive heart failure and angina pectoris have been related to CO exposure.  NOX  has also been
shown to have an adverse impact on both human health and welfare. The effects associated with
NOX include respiratory illness, damages to materials, crops, and forests,  and visibility
degradation.

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A comparison of the benefits of alternative control options to the costs imposed by the options
identifies the strategy that results in the highest net benefit to society.  A typical net benefit
analysis uses total "social" cost of the regulation in the comparison with monetized benefits,
which captures costs associated with emission control equipment as well as economic costs of
changes in production, prices, employment and other economic parameters.  The analysis
presented in this document is viewed with two considerations. First, since a welfare analysis was
not conducted for the rule, annualized emission  control costs are being used as a proxy for the
social cost of the regulation.  Secondly, the quantifiable benefits are limited to the monetization of
PM reductions only. Therefore, the EPA recognizes that the monetized benefits and thus the net
benefits are understated (or in this case, since annualized costs exceed the monetized benefits, net
costs are overstated) for the regulation.  The net cost of the final EG and NSPS for regulatory
option 1 is from  $62.2 million under scenario B  to $104.0 million under scenario C.  The net cost
of all other regulatory options are greater than option 1, therefore, net costs are minimized under
option 1 for both scenarios.

1.5    Small Business Impacts

In accordance with the Regulatory Flexibility Act  of 1980 and its amendment in 1996 by the Small
Business Regulatory Enforcement Fairness Act (SBREFA), an analysis of impacts on small
"entities" - including small businesses, small nonprofit organizations, and small governmental
jurisdictions - was performed.  This analysis indicates that the Emission Guidelines will not have a
"significant impact on a substantial number of small  entities" under any regulatory option.
Impacts are not significant for the vast majority  of medical waste generators that send their waste
off-site to be treated and disposed.  Impacts are also not significant for the great majority of
HMTWI operators that would have the opportunity to switch to an alternative method of medical
waste treatment  and disposal if control costs are prohibitive. Some significant impacts were
found for commercial HMTWI operators under all six regulatory options and for small on-site
HMTWI operators that are remote from an urban area under regulatory options three through  six.
These facilities might not have the opportunity to  switch to an alternative medical waste treatment
and disposal method - commercial HMTWI operators because medical waste incineration is their
line of business,  and small, remote HMIWI because  they may not have access to commercial
incineration services. However, the number of such facilities that are both significantly impacted
under the regulatory option proposed for promulgation and "small" would be, at the most, only a
few, and would therefore not be substantial.

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n     BACKGROUND

2.1    Regulatory Background

This action promulgates new source performance standards and emission guidelines to reduce air
emissions from hospital/medical/infectious waste incinerator(s) by adding subpart EC, standards
of performance for new HMIWI, and subpart Ce, emission guidelines for existing HMTWI, to 40
CFR part 60. The standards and guidelines implement sections 111 and 129 of the Clean Air Act
as amended in 1990 and are based on the Administrator's determination that HMTWI cause,  or
contribute significantly to, air pollution that may reasonably be anticipated to endanger public
health or welfare. The standards and guidelines apply to units whose primary purpose is the
combustion of hospital waste and/or medical/infectious waste.  Sources are required to achieve
emission levels reflecting the maximum degree of reduction in emissions of air pollutants that the
Administrator has determined is achievable, taking into consideration the cost of achieving such
emission reduction, and any non-air-quality health and environmental impacts and energy
requirements.  The promulgated standards and guidelines establish emission limits for hazardous
air pollutants including hydrogen chloride, lead, cadmium, and mercury; criteria air pollutants
including particulate matter, sulfur dioxide, oxides of nitrogen , carbon monoxide; dioxins and
dibenzofiirans; and fugitive ash emissions. The standards and guidelines also establish
requirements for HMIWI operator training/qualification, pollution prevention plans, and
testing/monitoring of pollutants and operating parameters. Additionally, the guidelines for
existing HMIWI contain equipment inspection requirements and the standards for new HMIWI
include siting requirements.

2.2    Definition of Hospital/Medical/Infectious Waste

Since the EG and NSPS establish  emissions guidelines and standards for HMIWI, it is necessary
to define hospital waste and medical/infectious waste. Hospital waste is defined as discards
generated at a hospital, except unused items returned to the  manufacturer.  The definition of
hospital waste does not include human remains.

Medical/infectious waste is any waste generated in the diagnosis, treatment, or immunization of
human beings or animals, in research pertaining thereto, or in the production or testing of
biologicals that is listed below:

(1) Cultures and stocks of infectious agents and associated biologicals, including, cultures from
medical and pathological laboratories; cultures and stocks of infectious agents from research and
industrial laboratories; wastes from the production of biologicals; discarded live and attenuated
vaccines; and culture dishes and devices used to transfer, inoculate, and mix cultures.

(2) Human pathological waste, including tissues, organs, and body parts and body fluids that are
removed during surgery or autopsy, or other medical procedures, and specimens of body fluids
and their containers.

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(3) Human blood and blood products including:
       (i) Liquid waste human blood;
       (ii) Products of blood;
       (iii) Items saturated and/or dripping with human blood; or
       (iv) Items that were saturated and/or dripping with human blood that are now caked with
dried human blood; including serum, plasma, and other blood components, and their containers,
which were used or intended for use in either patient care, testing and laboratory analysis or the
development of Pharmaceuticals.  Intravenous bags are also include in this category.

(4) Sharps that have been used in animal or human patient care or treatment or in medical,
research, or industrial laboratories, including hypodermic needles, syringes (with or without the
attached needle), pasteur pipettes, scalpel blades, blood vials, needles with attached tubing,  and
culture dishes (regardless of presence of infectious agents).  Also include are other types of
broken or unbroken glassware that were in contact with  infectious agents, such as used slides and
cover slips.

(5) Animal waste including contaminated animal carcasses, body parts, and bedding of animals
that were known to have been exposed to infectious agents during research (including research in
veterinary hospitals), production of biologicals or testing of Pharmaceuticals.

(6) Isolation wastes including biological waste and discarded materials contaminated with blood,
excretions, exudates, or secretions from humans who are isolated to protect others from certain
highly communicable diseases, or isolated animals known to be infected with highly communicable
diseases.

(7) Unused sharps including the following unused, discarded sharps:  hypodermic needles, suture
needles, syringes, and scalpel blades.

A HMIWI is any device that combusts any amount of hospital waste and/or medical/ infectious
waste as previously  defined.

2.3    Industries Generating Hospital/Medical/Infectious Waste and/or Operating HMIWI

The emission guidelines will impact industries that generate hospital/ medical/ infectious waste
and operate an existing on-site HMIWI, existing commercial HMIWI,  and industries that generate
medical waste but do not operate existing on-site HMIWI.  The NSPS will impact industries that
generate hospital/ medical/ infectious waste and plan to operate a new  on-site HMIWI, new
commercial HMIWI, and industries that generate medical waste but are not expected to operate
an on-site HMIWI.  Facilities engaging in the above activities will generally fall into one of two
categories: directly affected facilities, and "off-site generators."

Facilities in industries that generate medical waste and operate existing on-site HMIWI or will
operate new on-site HMIWI will be directly affected by the MACT emission guidelines and

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standards because they will need to initiate some action to comply with the regulation (i.e., install
emission control equipment or switch to an alternative).  Costs and economic impacts associated
with these facilities and industries are referred to as direct costs and economic impacts.  Industries
belonging to this category include hospitals, nursing homes, and research laboratories.  Also
included in this category of directly affected industries are commercial HMTWI. Although the
commercial HMIWI industry does not generate medical waste, it will be required to comply with
the emission guidelines and standards by installing emission control equipment.

The EG and NSPS will also impact facilities that generate medical waste but do not operate an
existing on-site HMIWI or will not operate a new on-site HMIWI. Such facilities are termed
"off-site generators" in this report. These facilities will be indirectly affected by the regulation
because they must send their medical waste off-site to be treated and disposed.  Commercial
HMIWI or other waste treatment facilities that provide service to these types of facilities are
expected to pass on to their customers at least a portion of their cost increases for pollution
control. Off-site generators are therefore expected to have to pay more for waste treatment
service. Industries belonging to this  off-site generator category include hospitals, nursing homes,
research laboratories, funeral homes, physicians' offices, dentists' offices and clinics, outpatient
care facilities, freestanding blood banks, fire and rescue operations, and correctional facilities.

Estimates of the number of facilities operating in industries that generate hospital and/or
medical/infectious waste and/or operate a HMIWI are listed in Table 1.  Table 2 presents the total
number of existing HMTWI in the inventory. As shown in Table 1, the total number of facilities
that generate hospital  and/or medical/ infectious waste and/or operate and HMIWI is
approximately 415,000, and this number vastly exceeds the number of HMTWI in operation
shown in Table 2.  Thus, most generators of hospital and/or medical/infectious waste are 'off-site
generators' and do not operate an incinerator.

In order to assess the impact of the NSPS, the number of new HMIWI projected to begin
operation over the period 1996 through 2000 are estimated using historical trends. The number
of new commercial HMTWI that would have begun operation in the absence of the emission
standards is  estimated by examining the annual number of new commercial incinerators that have
begun operation in the past few years.  This survey is possible because the HMIWI inventory
contains this information. An examination of the HMIWI inventory reveals that approximately
two new commercial incinerators have begun operation in  each of the past few years.  Using this
historical information, the cost and economic impact analyses project that in the absence of these
emission standards, two new commercial incinerators would begin operation in each year of the
five-year analysis time frame. Therefore, this analysis uses a future baseline often new
commercial  HMIWI that would potentially be affected by these emission standards by the fifth
year of the analysis time frame used to estimate economic impacts.  The same forecasting
methodology is applied to the projection of new HMIWI units in each of the industry categories.
Table 2 presents the number of new HMTWI that are projected to be constructed in the absence of
these MACT emission standards for new HMIWI.
                                            10

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                                 Table 1
               Number of Facilities in Industries Generating
        Hospital/Medical/Infectious Waste and/or Operating HMIWI
Industry
Hospitals
Nursing homes
Laboratories:
Commercial research'
Medical / dental
Funeral homes
Physicians' offices
Dentists' offices and clinics
Outpatient care2
Freestanding blood banks
Fire & rescue operations
Correctional facilities
Commercial incineration facilities
Total
Number of Facilities
6,601
20,879
4,170
15,961
22,000
192,965
108,919
9,238
218
29,840
4,591
79
415,461
1 SIC 8731, Commercial Physical and Biological Research.
2 Defined restnctively as ambulatory care centers (represented by
"general medical clinics," a subset of SIC 8011) and kidney dialysis facilities
                                    11

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                                         Table 2
                     Number of Existing and New Medical Waste Incinerators
HMIWI Size
Small
Medium
Large
Commercial
Total
Existing
HMIWI
1,139
692
463
79
2,373
Projected Number of NEW HMIWI
Per Year
17
18
12
2
49
Total
1996 to 2000
85
90
60
10
245
m     NEED FOR THE REGULATION

Executive Order 12866 requires that the Agency identify the need for the regulation being
proposed or promulgated.  The emission of air pollutants poses a threat to human health and the
environment. This section discusses: (1) the reasons the marketplace does not provide for
adequate pollution control absent appropriate standards or incentives; (2) the environmental
factors that indicate the need for additional pollution controls for HMIWI; and (3) the legal
requirements that dictate the necessity and timing of this regulation.

3.1    Market Failure

The need for emission guidelines and new source performance standards for HMIWI arises from
the failure of the marketplace to provide the optimal level of pollution control desired by society.
In making decisions regarding the purchase and operation of HMIWI, owners and operators only
consider those costs and benefits that accrue directly to them from the marketplace or internalized
benefits and costs. However, the operation of HMIWI creates the negative externality of air
pollution. An externality is defined as a cost or benefit of a market transaction that is not
reflected in the prices buyers and sellers use to make their decisions.  When HMIWI are operated,
air pollution occurs and the costs this pollution creates in terms of adverse health and
environmental effects are not considered in the price of HMIWI services absent environmental
regulations. The EG and NSPS for HMIWI are an attempt to internalize the negative externality
of air pollution associated with the operation of HMIWI.

In addition, air quality is a public good.  Public goods are defined as goods that when produced
are consumed by everyone whether the individual pays for the good or not.  Public goods are
nonexcludable which means it is not possible to exclude others from consumption of the good
when it is produced.  Individuals that pay for clean air are not able to exclude others from
                                            12

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enjoying the benefits of a less polluted environment. For this reason in many cases, the
marketplace, absent regulation, does not provide for the optimal level of clean air.

3.2    Environmental Factors

In the case of HMIWI, the marketplace fails to adequately consider the air pollution that occurs at
HMIWI without regulation.  Operation of HMIWI results in the emission of HAPs, dioxins and
furans, and criteria air pollutants. The EG and NSPS are expected to reduce air emissions of
•these pollutants.  The environmental and health benefits associated with this regulation are
-discussed more fully in Chapter VI.

3.3    Legal Requirements

The EG and NSPS are promulgated under the authority of Sections 111 and 129 of the Clean Air
Act as amended in 1990
IV    REGULATORY OPTIONS

4.1    Regulatory Options for Existing Sources

At proposal, the EPA examined the impacts of five control options for existing sources but
concluded that all existing HMIWI would need good combustion and dry scrubbers to meet the
MACT floors for CO, PM, and HC1. Consequently, the EPA was left to consider only two
control options for MACT.

After proposal, the EPA received numerous comments containing substantially new information.
Review of this new information led to new conclusions in a number of areas: the HMIWI
inventory; HMIWI subcategories; performance of emission control technologies; MACT floors;
and monitoring and testing options.  As a result, the EPA examined several new regulatory
options which merit consideration in selecting MACT for existing HMIWI.  This section
summarizes these new regulatory options and the EPA's assessment of their merits.

Based  on the new information submitted to the EPA following proposal of the EG, new MACT
floor emission levels were developed for small, medium, and large HMTWI.  Next, the EPA
determined the emission control technologies existing HMTWT would probably need to meet
regulations based on these floor emission limits  The floor for small existing HMTWI requires
good combustion; add-on wet scrubbing systems would not be necessary to meet the MACT
floor.  For medium existing HMIWI, the MACT floor requires good combustion and a moderate
efficiency wet scrubber. The MACT floor for large existing HMIWI requires good combustion
and a high efficiency wet scrubber.

Having identified the emission control technology most existing HMIWI would likely install to


                                          13

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meet the MACT floor emission limits, the EPA also reviewed the performance capabilities of
other emission control technologies that would reduce emissions by an amount greater than the
MACT floor level of control.  This process enables the EPA to identify more stringent regulatory
control options which could be selected as MACT.  Table 3 summarizes the emission control
technology that would probably be required for small, medium, and large HMTWI to meet the
emission limits specified for each of the regulatory options.  The regulatory options are a
combination of the various emission guidelines the EPA believes merit consideration as MACT
for existing HMTW1. This table is constructed only for the purpose of organizing and  structuring
an analysis of the cost, environmental, energy, and economic impacts associated with determining
or selecting MACT for existing HMIWI. In reviewing this table, therefore, there are a couple of
important  points to keep in mind.

First, the EG for existing HMIWI will not include requirements to use a specific emission control
system or technology; the EG will only include emission limits, which may be met by any means
or by any control system or technology of the HMIWI owner's or operator's choice.  Second, to
the extent  possible, it is  an objective of the EPA to adopt emission limits in the EG that can be
met through the use of several emission control systems or technologies. Consequently, where not
constrained by the Act, the actual emission limits associated with some of the regulatory options
shown in Table 3 have been selected at a level designed to encourage or permit the use of either
wet or dry scrubbing control systems.

4.2    Regulatory Options for New Sources

At proposal, the EPA concluded that all new HMTWI would need good combusion and dry
scrubbers to meet the MACT floors for CO, PM, HC1. Consequently, the EPA was left to
consider only two regulatory control options for MACT.

After proposal, the EPA received numerous comments containing substantially new information.
Review of this new information led to new conclusions in a number of areas: the HMIWI
inventory; HMIWI subcategories; performance of emission control technologies; MACT floors;
and monitoring and testing options. As a result, the EPA examined several new regulatory
options in selecting MACT for new HMTWI.  This section summarizes these new regulatory
options and the EPA's assessment of their merits.

The MACT "floor" defines the least stringent emission standards the EPA may adopt  for new
HMTWI. However, the Clean Air Act also requires EPA to examine alternative emission
standards  (i.e., regulatory options) more stringent than the MACT floor.

Based on the new information submitted to the EPA following proposal of the MACT emission
standards  for new HMIWI, new MACT floor emission levels were developed for new small,
medium, and large HMTWI. Next,  the EPA determined the emission control technologies new
HMIWI would probably need to meet regulations based on these floor emission limits. The floor
                                           14

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for small new HMIWI requires good combustion and moderate efficiency wet scrubbers. For
medium new HMIWI, the MACT floor requires good combustion and a combined wet/dry
scrubbing system without activated carbon injection.  The MACT floor for large new HMIWI
requires good combustion and a combined wet/dry scrubbing system with activated carbon
injection.

Having identified the emission control technology most new HMIWI would likely install to meet
the MACT floor emission limits, the EPA also reviewed the performance capabilities of other
emission control technologies that would reduce emissions by an amount greater than the MACT
floor level of control.  This process enables the EPA to identify more stringent regulatory options
which could be selected as MACT. Table 4 summarizes the emission control technology that
would probably be required for new small, medium, and large HMIWI to meet the emission limits
specified for each of the regulatory options.  The regulatory options are a combination of the
various emission standards the EPA believes merit consideration as MACT for new HMIWI.  As
is true for existing sources, this table is constructed only for the purpose of organizing and
structuring an analysis of the cost, environmental, energy, and economic impacts associated with
determining or selecting MACT for new HMIWI. These emission standards for new HMIWI will
not include requirements to use a specific emission control system or technology; the standards
will only include emission limits, which may be met by any means or by any control system or
technology of the HMIWI owner's or operator's choice.

4.3    Analysis Scenarios

Health care facilities may choose from among a number of alternatives for treatment and disposal
of their medical waste. (It should be noted that these alternatives are generally more limited for
health care facilities located in rural areas than for those located in urban areas.) At the time of
proposal, inventory  estimates indicated that fewer than half of all hospitals operated on-site
medical waste incinerators.  The clear trend over the past several years has been for more and
more hospitals to turn to the use of alternative on-site medical waste treatment technologies or
the use of commercial off-site treatment and disposal services.  Consequently, it is quite likely that
even fewer hospitals now operate on-site medical waste incinerators.

Given the above data, it can be assumed that more than half of all hospitals today have chosen to
use other means of treatment and disposal of their medical waste rather than operate an on-site
incinerator. This  indicates that alternatives to the use of on-site incinerators exist and that they
are readily  available in many  cases. For other health care facilities, such as nursing homes, etc.,
only a small number of facilities currently operate on-site HMTWI.  Therefore, for these types of
health care facilities, the percentage of such facilities using alternative means of treatment and
disposal of medical waste - particularly commercial treatment and disposal services - is much
higher, probably 95  percent or more.  This further confirms the availability of alternatives to
on-site incineration for the treatment and disposal of medical waste.
                                            16

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                                          Table 4
                              Regulatory Options For New HMIWI
HMIWI Size
Small
<200 Ib/hr
Medium
>200 Ib/hr and s 500
Ib/hr
Large
>500 Ib/hr
Regulatory Option
1
Good combustion and
moderate efficiency wet
scrubber
Good combustion, dry
injection/fabric filter
system, and high
efficiency wet scrubber
Good combustion, dry
injection/fabric filter
system with carbon, and
high efficiency wet
scrubber
2
Good combustion and
moderate efficiency wet
scrubber
Good combustion, dry
injection/fabric filter system
with carbon, and high
efficiency wet scrubber
Good combustion, dry
injection/fabric filter system
with carbon, and high
efficiency wet scrubber
3
Good combustion and high
efficiency wet scrubber
Good combustion, dry
injection/fabric filter
system with carbon, and
high efficiency wet
scrubber
Good combustion, dry
injection/fabric filter
system with carbon, and
high efficiency wet
scrubber
A likely reaction and outcome associated with the adoption of the standards for existing and new
HMIWI, therefore, is an increase in the use of these alternatives by health care facilities for
treatment and disposal of their medical waste.  It is not the objective of the EPA to encourage the
use of alternatives or to discourage the continued use of on-site medical waste incinerators;
rather, it is the objective of the EPA to adopt the emission standards for new HMIWI that fulfill
requirements of the Clean Air Act.  In doing so, however, it is clear that one outcome associated
with adoption of these emission standards is likely to be an increase in the use of alternatives and
a decrease in the use of on-site medical waste incinerators in the future. Consequently, it is an
outcome the EPA should acknowledge and incorporate into the analysis of the costs and
economic impacts of the emission standards.

In the analysis of costs and economic impacts discussed in Chapter V of this report, selection of
an alternative form of medical waste treatment and disposal by a health care facility, rather than
installing a new HMIWI, is referred to as "switching." Switching was incorporated into the cost
analysis at proposal and was the basis for the conclusion at proposal that adoption of the
proposed emission standards could lead to as many as 80 percent of health care facilities that
might have installed HMIWI to choose an alternative means of medical waste treatment and
disposal. However, the economic impacts presented with the proposed MACT for new sources
were only  evaluated using the costs under a "no switching" scenario. Although the RIA presented
a qualitative discussion of the likely possibility of facilities that might have installed on-site
HMIWI deciding to switch to alternative treatment and disposal methods, the economic impacts
under a switching scenario were not quantified due to  time constraints.
                                            17

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Switching has now been incorporated into the cost and economic impact analysis. Three
scenarios are evaluated: one scenario which ignores switching, and two scenarios which consider
switching.  Scenario A assumes that each existing and new HMIWI will comply with the
appropriate regulatory option by having the appropriate emission control equipment installed.
This scenario most likely overstates national costs and economic impacts and therefore should not
be viewed as representative of the new source emission standards.  It is included only to fulfill the
goal of providing a complete analysis.

Switching scenarios B and C are considered more representative of the cost and economic
impacts of the MACT for existing and new HMTWI. Both scenarios assume switching occurs
when the cost associated with purchasing and installing the air pollution control technology or
system necessary to comply with the MACT emission standards (i.e., a regulatory option) is
greater than the cost of using an alternative means of treatment and disposal."

The difference between the two scenarios is the assumption of whether or not the medical waste
stream is separated. Some facilities currently separate their medical waste into an infectious
stream and a non-infectious stream. Some commenters have stated it is a good assumption that
hospitals which currently operate on-site medical waste incinerators practice little separation of
medical waste into infectious and non-infectious streams; generally all the waste is incinerated.

Based  on estimates in the literature that only 10 to 15 percent  of medical waste is infectious and
the remaining 85 to 90 percent is non-infectious, scenario B  assumes that only 15 percent of the
waste currently being burned at a health care facility operating an on-site incinerator is infectious
medical waste; the remaining 85 percent is non-infectious medical waste. This non-infectious
waste is municipal waste; it needs no special handling, treatment, transportation, or disposal, and
can be sent to a municipal landfill or a municipal combustor for disposal. Thus, under scenario B,
when choosing an alternative to operation of an on-site medical waste incinerator, in response to
adoption of the emission standards, a health care facility need only choose an alternative form of
medical waste treatment and disposal for 15 percent of the waste stream to be burned on-site and
may send the remaining 85 percent to a municipal landfill. This scenario results in the lowest
costs because 85 percent of the waste is disposed at the relatively inexpensive cost of municipal
waste disposal.

On the other hand, it is unlikely that all health care facilities will be able to, or will decide to,
segregate their waste stream. For example, a facility may decide that the cost and inconvenience
of training its staff to segregate waste is not acceptable.  Scenario C, therefore, assumes that all
medical waste that would be burned at a health care facility with an on-site medical waste
incinerator is infectious medical waste and must be treated and disposed of accordingly. As a
       "Under both scenarios, however, switching may not be possible for some HMIWI that burn a small
 amount of medical waste and are located far away from an urban area. Such HMIWI may, in some cases,
 have difficulty attracting the services of waste haulers and/or commercial HMIWI operators. For some small,
 remote HMIWI, therefore, scenarios B and C may not apply. Only scenario A, no switching, may apply.

                                            18

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result, scenario C leads to higher costs than scenario B.

Scenarios B and  C represent the likely range of impacts associated with the MACT emission
standards for new and existing HMTWI. The actual impacts of a MACT emission standard (i.e., a
regulatory option) are most likely to fall somewhere within the range represented by scenarios B
andC.
V     ECONOMIC IMPACTS

5.1    Methodology - Existing Sources

This section briefly describes the analytical approach used to estimate industry-wide and facility-
specific economic impacts and to evaluate the economic feasibility of switching. All economic
impacts presented in this document were re-estimated using the methodology described in the
original economic impact analysis (EA.).  Therefore, for a more detailed description of the
methodology used to estimate economic impacts, refer to the Background Information for
Proposed Standards and Guidelines: Analysis of Economic Impacts for Existing Sources.4 The
base year for this analysis is 1993. Therefore, all dollar figures (e.g., costs, prices) are stated at
1993 levels.

Average industry-wide price increases are estimated by comparing annualized control costs to
annual revenue for each affected industry.  The ratio of annualized control costs to revenue
represents the average industry-wide price increase necessary to recover control costs. Percent
changes in industry-wide output are estimated in turn using high and low estimates of the price
elasticity of demand.  Resulting changes in industry revenue are estimated based on the price and
output calculations.  Employment or labor market  impacts are estimated assuming they are
proportional to the output impacts.

Facility-specific economic impacts are estimated using  model facility information. Facility-specific
price impacts are compared to average industry-wide price impacts to determine if the difference
between the two is significant.  A determination of significance - implying that  the facility price
increase may not be achievable - is made for all but commercial FIMIWI operators if the facility
price increase exceeds the average industry-wide, or "market," price increase by more than one
percentage point.  For commercial FEMTWI operators, the facility price increase is considered
significant if it exceeds the market price increase by more than two percentage  points.  More
pricing latitude is given to commercial FIMIWI operators for two  reasons: 1) commercial
incineration is not subject to the same institutional pricing constraints as the health care sector,
and 2) commercial incineration fees could actually get a boost from the regulation as a result of
switching from on-site incineration and an increase in the demand for commercial incineration
services.  Where significance is found, the impact on net income (earnings) of absorbing control
costs is estimated  and evaluated.
                                           19

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The assumption of no switching (scenario A) represents the highest cost and economic impact
scenario. (The exception is commercial HMIWI, for which control costs do not vary by
scenario.) Scenario B, switching with waste segregation, represents the lowest cost and
economic impact scenario.  As previously discussed, the EPA considers scenario A to be unlikely.
Scenarios B and C should be regarded as more representative of the impacts of the EG.

5.2    Methodology - New Sources

In general, the approach used to estimate economic impacts associated with the  NSPS is quite
similar to the methodology used for existing sources. However, it is necessary to make some
additional assumptions for the new source analysis and  these additional assumptions are briefly
discussed. All economic impacts presented in this document were re-estimated using the
methodology described in the original EA.. Therefore,  for a more detailed description of the
methodology used to estimate economic impacts, refer  to the Background Information for
Proposed Standards and Guidelines: Analysis of Economic Impacts for New Sources.5 Although
this analysis attempts to forecast future events and reactions to the emission standards, the basis
for the forecast  is 1993 financial and economic data.  Therefore, all dollar figures (e.g., costs,
prices) are stated at 1993 levels.

Economic impacts for new HMTWI are calculated under a couple of assumptions. First, the costs
that are used to estimate the economic impacts of these MACT emission standards include control
costs from both the emission guidelines (EG) for existing HMIWI and these emission standards
for new HMIWI (i.e., NSPS).  This approach is used to account for market adjustments (e.g.,
price impacts) that would first occur after implementation of the EG.  This approach allows for
the establishment of a nature baseline scenario. Second, due to lack of information, revenue data
for each of the affected industries were not adjusted for growth during the five-year time frame.

The NSPS will affect new HMIWI. An evaluation of the economic impacts of the NSPS requires
that the number of new HMIWI be forecast.  In this report, a five-year time period between  1996
and 2000 is used to evaluate the impact of the NSPS on new HMIWI.  This type of analysis is
only possible if projections of key analysis parameters are made.  The parameters required to
establish a future fifth-year baseline include: the number of new HMIWI units that would have
begun operation in the absence of these emission standards for new sources, the costs of control
technologies to enable the new HMIWI units to meet these emission standards,  the population of
facilities expected to exist in each of the industries (e.g., hospitals, etc.) and all relevant financial
and economic data used in this analysis to estimate the  economic impacts of these emission
standards.

Although these standards specify  only an emission limit that must be met, rather than a specific
emission control technology that must be installed, costs  are estimated by identifying the emission
control technology that most new HMIWI would likely install given the current available
technology. Therefore, no projections are made regarding future innovations or future changes in
the price of these emission control technologies.
                                           20

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Time-series data were not readily available to estimate changes in the population of hospitals,
nursing homes, etc. over the next five years. The population of facilities in each affected industry
is therefore assumed to remain constant at the 1993 level, the most recent year for which facility
population data were available. This implicitly assumes that new HMIWI in the next five years ill
not be due to industry growth, but rather to the replacement of existing HMIWI.
Also due to the lack of time-series data, future values are not estimated for financial and economic
inputs such as revenue and employment.  Rather, the available 1993 data are assumed to apply
throughout the five-year period. While this does not account for possible growth within the
affected industries, it is consistent with control costs, which are stated in 1993 dollars.

5.3    Industry-wide Annualized Control Costs - Existing Sources

Tables 5 A, 5B, and 5C present national capital and annualized control costs for those industries
that operate existing HMIWI ("direct control costs").6 Annualized control costs are highest under
scenario A (Table 5A). Total annualized costs under scenario A range from $85.2 million for
regulatory option one to $205.2 million for regulatory option six.  As previously explained,
scenario A impacts are calculated under the unlikely assumption that all facilities currently
operating an HMIWI will purchase emission control equipment. This scenario does not allow for
the possibility of switching to  alternative methods of waste treatment and  disposal.

National costs are lowest under scenario B, which assumes that some facilities currently operating
an on-site HMIWI will switch to an alternative method of waste treatment and disposal. This
scenario also  assumes that those facilities deciding to switch will also segregate their waste. Total
annualized costs under scenario B range from $55.2 million for regulatory option one to $66.3
million for regulatory option six.  The range under  scenario C, which assumes switching with no
waste segregation, is $82.2 million for regulatory option one to $130.7 million for regulatory
option six. In comparison to scenario A, costs under scenarios B and C do not  vary significantly
among the regulatory options because the cost of some alternative methods (such as autoclaving)
are unaffected by the EG. In addition, control requirements for commercial HMIWI  (another
alternative to on-site incineration) do not vary by regulatory option.  The small changes in
national annualized costs observed among the  regulatory options reflect the different number of
facilities expected to switch from on-site incineration to an alternative method of waste treatment
and disposal.
                                            21

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-------
Table 6 presents annual costs for those industries not operating HMIWI ("indirect control costs").
Annual costs for these "off-site generators," which are assumed to have their medical waste
incinerated off-site, were calculated by multiplying estimated medical waste generated annually by
the incremental cost for commercial incineration. The incremental cost was calculated by dividing
industry-wide annualized control costs for commercial incinerators by their throughput.  The
incremental cost of commercial incineration is calculated to be 0.63 cents per pound under all
regulatory options. Note in Tables 5A through 5C that industry-wide annualized control costs for
commercial HMIWI vary insignificantly by regulatory option, increasing only slightly from
regulatory option 4 and regulatory option 5.  This is because control requirements do not vary by
regulatory option for commercial HMIWI.
                                           Table 6
                      Industry-wide Annual Costs for Industries Not Operating
                        On-site Medical Waste Incinerators: Existing Sources
Industry
Medical / dental laboratories
Funeral homes
Physicians' offices
Dentists' offices & clinics
Outpatient care
Freestanding blood banks
Fire & rescue operations
Correctional facilities
Total
Medical Waste Generated
Annually (tons per year)
17,600
900
35,200
8,700
26,300
4,900
1,600
3,300
98,500
Annual Control Cost1
$222,115
$ 11,358
$444,230
$109,795
$331,910
$ 61,839
$ 20,192
$ 41,647
$1,243,087
1 Assumes that all medical waste is incinerated off-site at an incremental cost of 0.63 cents per pound, the average cost
increase for commercial HMIWI
                                             25

-------
5.4 Industry-wide Annualized Control Costs - New Sources

Tables 7A, 7B, and 7C present national annualized control costs for those industries that operate
HMIWI ("direct control costs").7 Annualized control costs are highest under scenario A (Table
7A). Total annualized costs under scenario A range from $230.2 million for regulatory option
one to $242.8 million for regulatory option three. As previously explained, scenario A impacts
are calculated under the unlikely assumption that all facilities operating, and expected to operate,
an HMIWI will purchase emission control equipment.  This scenario does not allow for the
possibility of switching to alternative methods of waste treatment and disposal.

Scenario B assumes that those facilities deciding to switch will also segregate their waste. Total
annualized costs under scenario B range from $77.3  million for regulatory options one and two to
$78.5 million for regulatory option three. The range under scenario C, which assumes switching
with no waste segregation, is $155.5 million for regulatory options one and two to $157.0 million
for regulatory option three. In comparison to Scenario A, costs under scenarios B and C do not
vary significantly among the regulatory options because the cost of some alternative methods
(such as autoclaving) are unaffected by the emission limits imposed on HMIWI. In addition,
control requirements for commercial HMIWI (another alternative to on-site incineration) do not
vary by regulatory option.  The small changes in national annualized costs observed among the
regulatory options reflect the different number of facilities expected to switch from  on-site
incineration to an alternative method of waste treatment and disposal.

Table 8 presents annual costs  for those industries not operating HMTWI ("indirect control costs").
Annual costs for these "off-site generators," which are assumed to have their medical waste
incinerated off-site, were calculated by multiplying estimated medical waste generated annually by
the incremental cost for commercial incineration. The incremental cost was calculated by dividing
industry-wide annualized control costs for commercial incinerators, both existing and new, by
their throughput.  The incremental cost of commercial incineration is calculated to be 0.99 cents
per pound under all regulatory options.

5.5    Industry-Wide Economic Impacts - Existing Sources

Industry wide impacts include estimates of the change in market price for the services provided by
the affected industries, the change in market output or production, the change in industry revenue,
and impact on affected labor markets in terms of employment losses or workers lost.  These
impacts are summarized in Tables 9 and 10.

As can be seen in Table 9, industries that generate hospital waste and/or medical/infectious waste
and operate onsite incinerators (i.e.,  hospitals, nursing homes, etc.) are expected to experience
average price increases in the  range of 0% to 0.14%, depending on the industry, regulatory
option, and scenario analyzed. Table 10 shows that these industries are expected to experience
output and employment impacts in the range of 0% to 0.18%.  In addition, the revenue impacts
                                            26

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                                                Table 7 A
                     Industry-wide Annualized Control Costs for Industries Operating
                       On-site Medical Waste Incinerators: Existing and New Sources
                                        Scenario A: No Switching
Industry
Hospitals
New
Existing
Total
Nursing homes
New
Existing
Total
Research labs
New
Existing
Total
Other
New
Existing
Total
Commercial incineration
New
Existing
Total
Total Existing and New
Annualized Costs
Regulatory Option I1
$ 23,925,809
$138,533,521
$162,459,330
$ 3,786,349
$21,923,449
$ 25,709,798
$ 3,786,349
$21,923,449
$ 25,709,798
$ 1,142,432
$ 6,614,834
$ 7,757,266
$ 3,581,630
$ 4,971,523
$ 8,553,153
$230,189,345
Regulatory
Option 22
$ 24,295,241
$138,533,521
$162,828,762
$ 3,844,813
$21,923,449
$ 25,768,262
$ 3,844,813
$21,923,449
$ 25,768,262
$ 1,160,072
$ 6,614,834
$ 7,774,906
$ 3,581,630
$ 4,971,523
$ 8,553,153
$230,693,345
Regulatory Option 33
$ 24,918,291
$146,776,634
$171,694,925
$ 3,943,413
$ 23,227,953
$27,171,366
$ 3,943,413
$ 23,227,953
$27,171,366
$ 1,189,822
$ 7,008,434
$ 8,198,256
$ 3,581,630
$ 4,971,523
$ 8,553,153
$242,789,066
' Assumes Regulatory Option 5 for existing HMIWI, the most stringent Emission Guidelines that
  would be considered in combination with regulatory option 1 of the NSPS for new sources.
2 Assumes Regulatory Option 5 for existing HMIWl, the most stringent Emission Guidelines that
  would be considered in combination with regulatory option 2 of the NSPS for new sources
3 Assumes Regulatory Option 6 for existing HMIWI, the most stringent Emission Guidelines that
  would be considered in combination with regulatory option 3 of the NSPS for new sources.
                                                   27

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                                               Table 7B
                     Industry-wide Annualized Control Costs for Industries Operating
                      On-site Medical Waste Incinerators: Existing and New Sources
                              Scenario B: Switching With Waste Segregation
Industry
Hospitals
New
Existing
Total
Nursing homes
New
Existing
Total
Research labs
New
Existing
Total
Other
New
Existing
Total
Commercial incineration
New
Existing
Total
Total Existing and New
Annualized Costs
Regulatory Option I1
$ 6,267,151
$44,157,613
$50,424,764
$ 991,800
$6,988,108
$ 7,979,908

$ 991,800
$6,988,108
$ 7,979,908

$ 299,251
$2,108,481
$ 2,407,732

$3,581,630
$4,971,523
$8,553,153
$77,345,465
Regulatory
Option 22
$ 6,267,151
$44,157,613
$50,424,764
$ 991,800
$6,988,108
$ 7,979,908

$ 991,800
$6,988,108
$ 7,979,908

$ 299,251
$2,108,481
$ 2,407,732

$3,581,630
$4,971,523
$8,553,153
$77,345,465
Regulatory Option 3*
$ 6,267,151
$44,973,911
$51,241,062
$ 991,800
$7,117,290
$8,109,090

$ 991,800
$7,117,290
$8,109,090

$ 299,251
$2,147,458
$ 2,446,709

$3,581,630
$4,971,523
$8,553,153
$78,459,104
1 Assumes Regulatory Option 5 for existing HMIWI, the most stringent Emission Guidelines that
 would be considered in combination with regulatory option 1 of the NSPS for new sources.
2 Assumes Regulatory Option 5 for existing HMIWI, the most stringent Emission Guidelines that
 would be considered in combination with regulatory option 2 of the NSPS for new sources.
3 Assumes Regulatory Option 6 for existing HMIWI, the most stringent Emission Guidelines that
 would be considered in combination with regulatory option 3 of the NSPS for new sources
                                                   28

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                                                Table 7C
                     Industry-wide Annualized Control Costs for Industries Operating
                       On-site Medical Waste Incinerators: Existing and New Sources
                             Scenario C: Switching With No Waste Segregation
Industry
Hospitals
New
Existing
Total
Nursing homes
New
Existing
Total
Research labs
New
Existing
Total
Other
New
Existing
Total
Commercial incineration
New
Existing
Total
Total Existing and New
Annualized Costs
Regulatory Option I1
$ 16,596,792
$ 91,125,328
$107,722,120
$ 2,626,504
$ 14,420,925
$ 17,047,429
$ 2,626,504
$ 14,420,925
$ 17,047,429
$ 792,480
$ 4,351,142
$ 5,143,622
$ 3,581,630
$ 4,971,523
$ 8,553,153
$155,513,753
Regulatory
Option 22
$ 16,596,792
$ 91,125,328
$107,722,120
$ 2,626,504
$ 14,420,925
$ 17,047,429
$ 2,626,504
$ 14,420,925
$ 17,047,429
$ 792,480
$ 4,351,142
$ 5,143,622
$ 3,581,630
$ 4,971,523
$ 8,553,153
$155,513,753
Regulatory Option 33
$ 16,596,792
$ 92,186,286
$108,783,078
$ 2,626,504
$ 14,588,825
$ 17,215,329
$ 2,626,504
$ 14,588,825
$ 17,215,329
$ 792,480
$ 4,401,801
$ 5,194,281
$ 3,581,630
$ 4,971,523
$ 8,553,153
$156,961,170
1 Assumes Regulatory Option 5 for existing HMIWI, the most stringent Emission Guidelines that
 would be considered in combination with regulatory option 1 of the NSPS for new sources.
2 Assumes Regulatory Option 5 for existing HMIWI, the most stringent Emission Guidelines that
 would be considered in combination with regulatory option 2 of the NSPS for new sources.
3 Assumes Regulatory Option 6 for existing HMIWI, the most stringent Emission Guidelines that
 would be considered in combination with regulatory option 3 of the NSPS for new sources
                                                   29

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                                                Table 8
                         Industry-wide Annual Costs for Industries Not Operating
                      On-site Medical Waste Incinerators:  Existing and New Sources
Industry
Medical / dental laboratories
Funeral homes
Physicians' offices
Dentists' offices & clinics
Outpatient care
Freestanding blood banks
Fire & rescue operations
Correctional facilities
Total
Medical Waste Generated
Annually (tons per year)
17,600
900
35,200
8,700
26,300
4,900
1,600
3,300
98,500
Annual Control Cost1
$348,067
$ 17,799
$696,134
$172,056
$520,123
$ 96,905
$ 31,642
$ 65,263
$1,947,989
1 Assumes that all medical waste is incinerated off-site at an incremental cost of 0.99 cents per
 pound, the average annualized cost increase for commercial HMIWI (existing and new).
                                                   30

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                                                 Table 9
                              Hospital/Medical/Infectious Waste Incineration
                              Industry-wide Price* Impacts - Existing Sources
                                          Percent Increase (%)
Industry
Hospitals
Nursing homes
Laboratories.
Research
Medical/dental
Funeral homes
Physicians offices
Dentists offices and clinics
Outpatient care
Freestanding blood banks
Fire and rescue operations
Correctional facilities
Commercial incineration
Range for Regulatory Options 1-6
Scenario A
No Switching
0.02-0.05
0.02-0.05
0.05-0 14
0
0
0
0
0
0
0
0
2.6
Scenario B
Switching with Waste
Segregation
0.01
0.01
0.03-0 04
0
0
0
0
0
0
0
0
2.6
Scenario C
Switching with No
Waste Segregation
0.02-0.03
0.02-0.03
0.05-0 09
0
0
0
0
0
0
0
0
2.6
* The price increase percentages reported represent the pnce increase necessary to recover annualized emission control
costs for each industry
                                                   31

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                             Table 10
            Hospital/Medical/Infectious Waste Incineration
Industry-wide Output, Employment and Revenue Impacts - Existing Sources

Industry
Hospitals
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Nursing homes
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Laboratories:
Research
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Medical/dental
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Funeral homes
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Physicians offices
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Dentists offices and clinics
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Outpatient care
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Freestanding blood banks
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Fire and rescue operations
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Correctional facilities
Output decrease (%)
Employment loss (# of jobs)
Revenue increase or (decrease) (%)
Range for Regulatory Options 1-6
Scenario A
No Switching
0-0.02
0-660
0.01-0.05
0 01-0.03
97-494
0.01-003
0.05-0.18
87-287
(0.04)-0
0
2-4
0
0
0
0
0
0-1
0
0
1
0
0
0-1
0
0
0
0
0
0
0
0
0
0
Scenario B
Switching with Waste
Segregation
0-0.01
0-202
0.01
0-0.01
61-151
0-0.01
0.03-0.06
54-88
(O.Ol)-O
0
2-4
0
0
0
0
0
0-1
0
0
1
0
0
0-1
0
0
0
0
0
0
0
0
0
0
Scenario C
Switching with No Waste
Segregation
0-0.01
0-415
0.01-0.03
0.01-002
94-310
001-0.02
0.05-0.11
83-180
(0.03)-0
0
2-4
0
0
0
0
0
0-1
0
0
1
0
0
0-1
0
0
0
0
0
0
0
0
0
0
                                32

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for these industries are expected to range from an increase of 0.05% to a decrease of 0.04%.  An
increase in industry revenue is expected to occur in cases where the price elasticity of demand for
an industry's product is inelastic or between 0 and -1.  Such a price elasticity indicates that output
changes are not very responsive to a change in price, specifically that the percentage decrease in
output will be less than the percentage increase in price. Since revenue is a product of price and
output, a less than proportional change in output compared to price means that total revenue
should increase.

The following example illustrates how the above price impacts could be interpreted for the
hospital industry. Table 9 shows that for hospitals, 0.03% is estimated as the price increase
necessary to recover annual control costs assuming regulatory option 6 (the most stringent
regulatory option) and scenario C, switching with no waste segregation.  This change in price can
be expressed in terms of the increased cost of hospitalization due to the regulation.  Total
nationwide adjusted patient days at hospitals in 1993 were an estimated 304.5 million days.
("Adjusted" patient-days include both in-patient days and the in-patient equivalent of out-patient
days at hospitals.) The total annualized control cost under regulatory option  6, scenario C for the
hospital industry is $92.2 million, or $.30 per adjusted patient day. This means the average price
increase that an individual would experience for each hospital patient-day is expected to equal 30
cents.

Table 9 also shows that the average price impact for the commercial HMIWI industry is
approximately a 2.6% increase in price.  Cost and economic impact estimates are the same for the
commercial HMIWI industry regardless of the regulatory option analyzed because all six
regulatory options specify identical regulatory requirements. Average Industry wide output,
employment, and revenue impacts were not estimated for this sector because data such as price
elasticity estimates and employment levels were not available.

5.6     Industry-wide Impacts -Existing and New Sources

Industry wide  impacts include estimates of the change in market price*for the services provided by
the affected industries, the change in market output or production, the change in industry revenue,
and impact on affected labor markets in terms of number of jobs lost. These impacts are
summarized for existing and new sources on Tables 11 and 12.

As can  be seen on Table 11, industries that generate hospital waste and/or medical/infectious
waste (i.e., hospitals, nursing homes, etc.) are expected to experience average price increases in
the range of 0% to 0.16%, depending on the industry, regulatory option, and scenario analyzed.
Table 12 shows that these industries are  expected to experience output and employment impacts
in the range of 0% to 0.21%.  In addition, the revenue impacts for these industries are expected to
range from an increase of 0.05% to a decrease of 0.05%. An increase in industry revenue is
expected to occur in cases where the price elasticity of demand for an industry's product is
inelastic or between 0 and -1.  Such a price elasticity indicates that output changes are not very
                                            33

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                                                Table 11
                              Hospital/Medical/Infectious Waste Incineration
                         Industry-wide Price* Impacts - New and Existing Sources
                                          Percent Increase (%)
Industry
Hospitals
Nursing homes
Laboratories:
Research
Medical/dental
Funeral homes
Physicians offices
Dentists offices and clinics
Outpatient care
Freestanding blood banks
Fire and rescue operations
Correctional facilities
Commercial incineration
Range for Regulatory Options 1-3
Scenario A
No Switching
0.05
005
0 15-0.16
0
0.00
0.00
000
0.00
0.01
0.00
0.00
4.1
Scenario B Switching
with Waste Segregation
0.02
0.02
0.05
0
0.00
0.00
0.00
0.00
0.01
0.00
0.00
4.1
Scenario C
Switching with No
Waste Segregation
0.03
0.03
0.10
0
0.00
0.00
0.00
0.00
0.01
0.00
0.00
4.1
* The price increase percentages reported represent the price increase necessary to recover annualized emission control
costs for each industry.
                                                   34

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                  Table 12
Hospital/Medical/Infectious Waste Incineration
Industry
Hospitals
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Nursing homes
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Laboratories:
Research
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Medical/dental
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Funeral homes
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Physicians offices
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Dentists offices and clinics
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Outpatient care
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Freestanding blood banks
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Fire and rescue operations
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Correctional facilities
Output decrease (%)
Employment loss
Revenue increase or (decrease) (%)
Range for Regulatory Options 1-6
Scenario A
No Switching
0-0.02
0-772
0.03-0 05
0.02-0.04
269-578
0.02-0 04
0.15-0.21
239-336
(0.05)-0
0
3-6
0
0
0
0
0
0-2
0
0
1-2
0
0
0-2
0
0
0
0-0.01
0
0
0
0.00
Scenario B Switching with Waste
Segregation
0-0.01
0-231
0.01-0.02
0.01
84-172
001
0.05-0.06
74-100
(0.02>0
0
3-6
0
0
0
0
0
0-2
0
0
1-2
0
0
0-2
0
0
0
0-0.01
0
0
0
0
0
0
Scenario C
Switching with No Waste
Segregation
0-0.01
0-489
0 02-0.03
0.01-002
179-366
001-0.02
0.10-0.13
158-213
(0.03)-0
0
3-6
0
0
0
0
0
0-2
0
0
1-2
0
0
0-2
0
0
0
0-0.01
0
0
0
0
0
0
                     35

-------
responsive to a change in price, specifically that the percentage decrease in output will be less
than the percentage increase in price.  Since revenue is a product of price and output, a less than
proportional change in output compared to price means that total revenue should increase.

The following example illustrates how the above price impacts could be interpreted for the
hospital industry.  The estimated average industry-wide price increase for hospitals under
regulatory option 3 for the NSPS coupled with regulatory option 6 for the EG (the most stringent
regulatory options) and scenario C, switching with no waste segregation, is 0.03 percent as shown
in Table 11.  This can  be expressed in terms of the increased cost of hospitalization due to the
regulation. Total nationwide adjusted patient days at hospitals in 1993  were an estimated 304.5
million days.  ("Adjusted" patient days include both in-patient days and the in-patient day
equivalent of out-patient visits.) The total annualized control cost under regulatory option 3
(NSPS), regulatory option 6 (EG), and scenario C for the hospital industry is $108.8 million, or
$0.36 per adjusted patient day. This means that the average price increase that an individual
would experience for each hospital patient-day is expected to equal 36 cents.

Table 11 also shows that the average price impact for the commercial HMIWI industry is
approximately a 4.1% increase in price.  Cost and economic impact estimates are the same for the
commercial HMIWI industry regardless of the regulatory option analyzed because all three
regulatory options specify identical regulatory requirements.  Average industry-wide output,
employment, and revenue impacts were not estimated for this sector because data such as price
elasticity estimates and employment levels were not available.

5.7    Model Facility Analysis

Facility-specific impacts were also estimated for the affected industries.  These impacts were
calculated by employing the concept of the model facility.  This technique allows an analysis to be
prepared on a more detailed level by defining key parameters to describe "typical" facilities in  the
affected industries. The RIA prepared for the proposed rule used cost estimates provided on a
model combustor (i.e., HMIWI) basis to  estimate economic impacts for model facilities.  The
model facility concept not  only had to incorporate model HMIWI parameters, (e.g., amount of
throughput to determine size, etc.), but also key financial and economic parameters (e.g., revenue,
etc.).  Therefore, a scheme to assign model HMIWI to model facilities had to be developed in  the
original RIA.

New information received  after proposal made it possible for cost estimates to be developed on a
model facility basis, with key model HMTWI parameters already incorporated into the model
facility concept.  Therefore, this document no longer needs to employ the "linking" scheme used
to assign model HMIWI to model facilities in the earlier RIA. The model facilities defined in the
cost analysis are presented in Table 13.  Note that hospitals are defined in terms of number of
beds while nursing homes and commercial research laboratories are defined in terms of number of
employees.  Note also that commercial incineration facilities are not included in the table. This is
                                            36

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                                        Table 13
                                  Model Facility Definitions
Facility
Large Hospital
Medium Hospital
Small Hospital
Nursing Home
Commercial Research Laboratory
Commercial Incineration Facility
Definition
400 beds
140 beds
40 beds
1 50 employees
200 employees
N/A
HMIWI Assignment
Large HMIWI
Medium HMIWI
Small HMIWI
Small HMIWI
Medium HMIWI
Commercial HMIWI
(large)
N/A - not available
because an exception to the model facility approach is made for commercial HMIWI.  Instead,
facility-specific impacts are calculated for each of the 59 facilities operating the 79 commercial
HMtWI in the HMIWI inventory. (Costs and impacts for commercial HMIWI will be presented
in the tables that follow as ranges representing all 59 of the commercial HMIWI facilities in the
inventory.)

5.7.1 Model Plant Costs - Existing Sources

Tables 14 and 15 present capital (for scenario A) and annualized (for scenarios A, B, and C) costs
for model HMIWI - existing sources.  Scenario A has capital costs because it assumes that all
facilities currently operating an HMIWI will have emission control equipment installed rather than
switch to an alternative technology. Scenarios B and C have no capital costs because switching to
an alternative technology precludes the need to invest in emission control equipment for an on-site
HMIWI.

For all HMIWI other than commercial HMIWI and small, rural, remote HMIWI (defined as more
than 50 miles away from an SMS A and burning less than 2,000 pounds of medical waste per
year), scenario A is an unlikely representation of facility-specific impacts for a couple of reasons.
First, the assumption that some currently operated HMIWI will not be replaced by alternative
technologies is unrealistic.  The regulation will impose additional costs on HMIWI and, therefore,
will make alternative technologies more attractive - from a cost perspective - in comparison.
Second, the model facility analysis under scenario A examines the cost of imposing emission
                                           37

-------
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                                          Table 15
                          Annual Costs of Switching for Model HMTWF
                                      Scenarios B and C
Model HMIWI
Small
Urban
Rural2
Medium
Urban
Rural
Large
Urban
Rural
Scenario B - Switching With
Waste Segregation
$5,260
$7,400
$19,944
$28,058
$ 93,584
$131,658
Scenario C - Switching Without
Waste Segregation
$19,200
$31,200
$72,800
$118,300
$341,600
$555,100
1 Switching costs do not vary by regulatory option
2 Does not apply to facilities that are remote (i.e , more than 50 miles from an SMSA) and burn
 less than 2,000 pounds of medical waste per week  Such facilities are assumed to generally not
 have switching opportunities.
control costs on "uncontrolled" HMIWI in the baseline.  Many currently operated HMIWI already
have some emission control equipment installed.  The costs of meeting any of the regulatory
options would not be from a baseline of "no controls" for these facilities.  Therefore, scenario A
represents only the extreme case of HMIWI having no emission controls in the baseline.
Scenario A,  on the other hand, is the only scenario that applies to commercial HMIWI and small,
rural, remote HMIWI because they are assumed to not be able to switch to an alternative
technology.

Incremental  annual costs for off-site generators are presented in Table 16.  The costs reflect two
alternative estimates of the increase in the cost of off-site incineration. The low estimate is 0.63
cents per pound, the average annualized control cost for all commercial HMIWI.  The high
estimate derives from an uncontrolled large model commercial HMTWI estimated to have
annualized control costs of $193,694 and to burn 7,711,000 pounds of medical waste annually.
Dividing cost by throughput yields a cost of 2.51 cents per pound.  The use of low and high cost
estimates allows for the consideration of uncertainty in the actual incremental cost that off-site
generators will face.
                                            39

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                                                           Table 16
                         Annual Costs for Model Facilities Not Operating On-site HMIWI: Existing Sources
Industry/Model Facility
Hospitals
<50Beds
50-99 Beds
100-299 Beds
300+ Beds
Nursing Homes
0-19 Employees
Tax-paying
Tax-exempt
20-99 Employees
Tax-paying
Tax-exempt
100+ Employees
Tax-exempt
Tax-paying
Commercial Research Laboratories
Tax-paying
0-19 Employees
20-99 Employees
100+ Employees
Tax-exempt
Outpatient Care Clinics
Physicians' clinics (amb. care)
Tax-paying
Tax-exempt
Freestanding kidney dialysis facilities
Tax-paying
Tax-exempt
Physicians' Offices
Dentists' Offices and Clinics
Offices
Clinics
Tax-paying
Tax-exempt
Medical & Dental Laboratories
Medical
Dental
Freestanding Blood Banks
Funeral Homes
Fire & Rescue
Corrections
Federal Government
State Government
Local Government
Medical Waste
Per Facility
(tons)
9.75
17.10
52.08
167.28
0.14
0.17
1.14
1.04
2.70
3.44
0.28
2.19
2450
728
2.26
4.19
1.62
2.31
0.18
0.08
0.14
0.19
1.63
0.51
22.48
0.04
0.05
1.64
1.70
0.34
Incremental Annual Cost Per Facility
Low1
$123
$216
$657
$2,111
$2
$2
$14
$13
$34
$43
$4
$28
$309
$92
$29
$53
$20
$29
$2
$1
$2
$2
$21
$6
$284
$1
$1
$21
$21
$4
High2
$490
$859
$2,616
$8,404
$7
$9
$57
$52
$135
$173
$14
$110
$1,231
$366
$113
$210
$81
$116
$9
$4
$7
$10
$82
$26
$1,129
$2
$3
$82
$85
$17
1 Based on $0 006 per pound, the average annualized control cost for all commercial HMIWI.
2 Based on $0 025 per pound, the annualized control cost for a large model commercial HMIWI that is uncontrolled in the baseline.
                                                               40

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 5.7.2 Model Plant Costs - New Sources

 Tables 17 and 18 present capital (for scenario A) and annualized (for scenarios A, B, and C) costs
 for new model HMIWI. Scenario A has capital costs because it assumes that all facilities
 expected to operate an HMIWI will have emission control equipment installed rather than decide
 to use an alternative technology (i.e., switch). Scenarios B and C have no capital costs because
 switching to an alternative technology precludes the need to invest in emission control equipment
 for an on-site HMIWI.

 For all HMIWI other than commercial HMIWI and small rural HMIWI that are remote from an
 urban area, scenario A is an unlikely representation of facility-specific impacts because the
 assumption that some potentially new HMIWI will not be replaced by alternative technologies is
 unrealistic.  The regulation will impose additional costs on new HMIWI and, therefore, will make
 alternative technologies more attractive - from a cost perspective - in comparison.  In addition,
 the costs in Table A are from a baseline of no controls.  The table therefore overstates control
 costs for the no  doubt many new HMIWI that, in the absence of the emission standards, would
 have been equipped with at least some controls.  Scenario A, on the other hand,  may be the only
 scenario that applies to commercial HMIWI and small rural HMTWI that are remote from an
 urban area if they are unable to switch to an alternative technology.

 Incremental annual costs for off-site generators are presented in Table 19.  The costs reflect two
 alternative estimates of the increase in the cost of off-site incineration.  The low  estimate is 0.99
 cents per pound, the average annualized control  cost for all commercial HMIWI, existing and
 new. The high estimate derives from a new large model commercial HMTWI estimated to have
 annualized control costs of $358,163 and to burn 7,711,000 pounds of medical waste annually.
 Dividing cost by throughput yields a cost of 4.64 cents per pound.  The use of low and high cost
 estimates allows for the consideration of uncertainty in the actual incremental cost that off-site
 generators will face.

 5.8    Facility  Specific Impacts - Existing Sources

 Facility-specific impacts were also estimated for the affected industries. The facility specific price
 increase is the price increase necessary for an individual facility to fully recover control costs and
 it is calculated as the ratio of model facility annualized control costs to annual revenue.  These
 estimates, presented in Tables 20 and 21, were calculated for the three switching scenarios. A
 cost as a percent of revenue/budget ratio was calculated to provide an indication of the magnitude
 of the impact of the regulation on an uncontrolled facility in each industry sector. The facility-
specific cost to revenue/budget ratio was compared to the Industry wide price impact to
 determine if the facility's impacts differ significantly from the average Industry wide impacts.  This
 calculation was then compared to the Industry wide price impact to determine if the facility's
 impacts differ significantly from the average Industry wide impacts.  A determination of
                                            41

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                                               Table 17
                             Control Costs for Model HMIWI:  New Sources
                                       Scenario A; No Switching
Model HMIWI
Small
Urban
Annualized cost
Capital cost
Small
Rural
Annualized cost
Capital cost
Medium
Annualized cost
Capital cost
Large on-site
Annualized cost
Capital cost
Large commercial
Annualized cost
Capital cost
Regulatory Option
One
$ 68,194
$220,386
$ 68,194
$220,386
$159,563
$652,194
$208,063
$652,894
$358,163
$758,494
Two
$ 68,194
$220,386
$ 68,194
$220,386
$165,163
$655,394
$208,063
$652,894
$358,163
$758,494
Three
$ 78,194
$268,786
$ 78,194
$268,786
$165,163
$655,394
$208,063
$652,894
$358,163
$758,494
                                               Table 18
                             Annual Costs of Switching for Model HMIWI'
Model HMIWI
Small
Urban
Rural2
Medium
Urban
Rural
Large
Urban
Rural
Scenario B - Switching With
Waste Segregation
$5,260
$7,400
$19,944
$28,058
$93,584
$131,658
Scenario C - Switching Without
Waste Segregation
$19,200
$3 1 ,200
$72.800
$118,300
$341,600
$555,100
' Switching costs do not vary by regulatory option.
2 May not apply to some facilities that burn a small amount of medical waste and are remote from
 an urban area.  Such facilities may not have switching opportunities if they have difficulty
 attracting the services of waste haulers and/or commercial HMIWI operators.
                                                  42

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                                                          Table 19
                          Annual Costs for Model Facilities Not Operating On-site HMIWI: New Sources
Industry/Model Facility
Hospitals
<50 Beds
50-99 Beds
100-299 Beds
300+ Beds
Nursing Homes
0-19 Employees
Tax-paying
Tax-exempt
20-99 Employees
Tax-paying
Tax-exempt
100+ Employees
Tax-exempt
Tax-paying
Commercial Research Labs
Tax-paying
0-19 Employees
20-99 Employees
100+ Employees
Tax-exempt
Outpatient Care
Physicians' clinics (amb. care)
Tax-paying
Tax-exempt
Freestanding kidney dialysis facilities
Tax-paying
Tax-exempt
Physicians' Offices
Dentists' Offices and Clinics
Offices
Clinics
Tax-paying
Tax-exempt
Medical & Dental Labs
Medical
Dental
Freestanding Blood Banks
Funeral Homes
Fire & Rescue
Corrections
Federal Government
State Government
Local Government
Medical Waste
Per Facility
(tons)
9.75
17.10
52.08
167.28
0.14
0.17
1 14
1.04
2.70
3.44
0.28
2.19
24.50
7.28
2.26
4.19
1.62
2.31
0 18
0.08
0.14
0.19
1.63
0.51
22.48
0.04
0.05
1.64
1.70
0.34
Incremental Annual CostTer Facility
Low1
$193
$338
$1,030
$3,308
$3
$3
$23
$21
$53
$68
$6
$43
$485
$144
$45
$83
$32
$46
$4
$2
$3
$4
$32
$10
$445
$1
$1
$32
$34
$7
High2
$906
$1,589
$4,838
$15,539
$13
$16
$106
$97
$250
$320
$26
$204
$2,276
$676
$210
$389
$150
$215
$17
$7
$13
$18
$151
$48
$2,088
$4
$5
$152
$158
$31
1 Based on $0.010 per pound, the average annualized control cost for all commercial HMIWI (existing and new)
2Based on $0.046 per pound, the annualized control cost for a new large model commercial HMIWI
                                                             43

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                                                            Table 20
                                         Hospital/Medical/Infectious Waste Incineration
                       Per Facility Impacts Assuming No Switching and Onsite Incineration - Existing Sources
                                   Annualized Control Cost as a Percent of Revenue/Budget (%)

Industry

Hospitals - Short term, excluding psychiatric:
Federal Government
Small
Urban and rural, not remote or ^ 2000 Ibs./week
Rural, remote and • 2000 Ibs./week
Medium
Large
State Government
Small
Urban and rural, not remote or ^ 2000 Ibs./week
Rural, remote and • 2000 Ibs./week
Medium
Large
Local Government
Small
Urban and rural, not remote or <; 2000 Ibs /week
Rural, remote and - 2000 Ibs /week
Medium
Large
Not-for-profit
Small
Urban and rural, not remote or <; 2000 Ibs /week
Rural, remote and < 2000 Ibs./week
Medium
Large
For-profit
Small
Urban and rural, not remote or i 2000 Ibs /week
Rural
Medium
Large
Hospitals - Psychiatric, short term and long term:
Small
Urban and rural, not remote or 2 2000 Ibs /week
Rural, remote and < 2000 Ibs./week
Medium
Large
Nursing Homes:
Tax-Paying
Urban and rural, not remote or ^ 2000 Ibs./week
Rural, remote and < 2000 Ibs./week
Tax-exempt
Urban
Rural
Commercial research labs
Tax-paying
Tax-exempt
Commercial Incineration Facilities*
Scenario A - No Switching

Option 1



0.11
0 11
0.20
0.13


0.23
0.23
0.21
007


036
036
0.32
0.10


0.25
0.25
0.24
0.11


0.28
0.28
0.25
0.14


0.38
0.38
058
047


0.41
0.41

0.42
0.42

0.41
0.41
0-18.36

Option 2



0.38
0.11
0.20
013


0.82
023
0.21
0.07


1.27
036
0.32
0 10


0.86
025
024
0 11


0.97
0.28
0.25
0.14


1.34
0.38
058
0.47


1 45
0.41

1.49
0.42

0.41
041
0-18.36

Option 3



0.38
0.38
0.20
0.13


0.82
082
0.21
0.07


1.27
1.27
0.32
0.10


0.86
0.86
0.24
0.11


0.97
0.97
0.25
0 14


1.34
1.34
0.58
047


1.45
1.45

1.49
1.49

0.41
0.41
0-18.36

Option 4



0.42
0.42
0.20
0.13


0.89
0.89
0.21
0.07


1 39
1 39
0.32
.010


0.94
0.94
024
0 11


1.06
1.06
0.25
0.14


1 46
1.46
0.58
0.47


1.59
1 59

1.62
1.62

0.47
047
0-18.36

Option 5



0.42
0.42
0.23
0.13


0.89
089
0.24
007


1.39
1.39
0.36
0.10


0.94
0.94
0.27
0 11


1.06
1.06
0.28
0.14


1.46
1.46
0.66
0.47


1.59
1.59

1.62
1.62

0.47
0.47
0-20 69

Option 6



047
047 ;
023
0 13
1
1
1 01 I
1 01 1
0.24 1
007 1




" JU £
0 10





0.11 |
j

1.20
1.20
028
0 14


1 65
1 65
0.66
047 ;
1
',

1.79
1.79

1.83
1.83 i
§

047 I
0.47 "•
0-20.69 ':
*This is the range of impacts for all 59 facilities operating commercial incinerators.  Only three of these facilities are anticipated to experience cost to
revenue/budget ratios exceeding the significance criteria of 4.6 percent.
                                                               44

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                                                  Table 21
                                Hospital/Medical/Infectious Waste Incineration
Per Facility Impacts Assuming Switching from Onsite Incineration to Commercial Disposal Alternatives - Existing Sources
                       Alternative Waste Disposal Cost as a Percent of Revenue/Budget (%)

Industry
Hospitals - Short term, excluding psychiatric:
Federal Government-
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
State Government.
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
Local Government.
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
Not-for-profit
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
For-profit
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
Hospitals - Psychiatric, short term and long term: Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
Nursing Homes: Tax-Paying - Urban
Rural
Tax-exempt- Urban
Rural
Commercial research labs: Tax-paying - Urban
Rural
Tax-exempt- Urban
Rural
Scenario B - Switching With
Waste Segregation


0.03
0.04
0.05
0.06
0.08
0.11

0.06
008
005
0.07
0.05
0.06

" 0.09
0.13
0.07
0.08
0.06
0.08

0.06
0.09
0.05
0.08
0.07
0.10

0.07
0.10
0.06
0.08
~ 0.09
0.12
0.10
0.14
0.13
0.19
0.29
0.40
0.11
0.15
0.11
0.15
0.09
0.13
0.09
0.13
Scenario C - Switching
Without Waste Segregation


0.10
0.17
017
0.27
0.29
0.47

0.22
0.36
0.18
0.29
0.16
0.27

0.34
056
0.27
0.44
0.22
0.36

0.23
0.38
0.20
0.32
0.25
0.41

0.26
0.43
0.21
034
0.32
052
0.36
0.59
0.48
0.78
1.05
1.70
0.39
0.64
0.40
0.65
0.34
0.56
0.34
0.56
                                                    45

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significance - implying that the facility price increase may not be achievable - is made for all but
commercial HMTWI operators if the facility price increase exceeds the average industry-wide, or
"market" price increase by more than one percentage point. For commercial HMIWI operators,
the facility price increase is considered significant if it exceeds the market price increase by more
than two percentage points. More pricing latitude is given to commercial HMIWI operators for
two reasons:  1) commercial incineration is not subject to the same institutional pricing constraints
as the health care sector, and 2) commercial incineration fees  could actually get a boost from the
regulation as a result of switching from on-site incineration and an increase in the demand for
commercial incineration services.  Where significance is found, the impact on net income
(earnings) of absorbing control costs is estimated and evaluated.

Excluding commercial incineration, Tables 20 and 21 show that facilities with onsite HMIWI that
are currently uncontrolled may experience impacts ranging from 0.03% to 1.83%, depending on
the industry, regulatory option, and scenario  analyzed.  Commercial incinerator impacts range
from 0% to 20.69%.  A comparison of the facility-specific economic impacts expected to occur
under the three switching scenarios to market price increases  indicates that the impacts for
facilities that operate on-site HMIWI are generally insignificant. Either the cost  of controls or the
cost of switching to an alternative waste treatment and disposal method could be recovered with a
price increase that does not significantly exceed the market price increase.  For many firms
currently operating onsite HMIWI the option of switching will be attractive because the economic
impacts of switching to an alternative method of waste disposal are much lower  than the
economic impacts from installing emission control equipment for facilities that are  currently
uncontrolled.

Two types of HMIWI operators may not be able to switch to an alternative, however:
commercial HMIWI operators, because their line of business  is commercial incineration; and
small, rural, remote HMTWI (defined as more than 50 miles away from an SMSA and burning less
than 2,000 pounds of waste per week), which may not have access to waste hauling and/or
commercial incineration services. For commercial HMIWI operators, three of the 59 facilities
operating the 79 commercial HMIWI in the HMIWI inventory were found to be significantly
impacted by the regulation (under all six regulatory options).  These facilities may  not have to
shut down, since they are completely uncontrolled in the baseline  and therefore may currently
enjoy a cost advantage over their competitors (most of which are at least partially  controlled in
the baseline), and that the regulation will bring about - due to switching away from on-site
incineration - an increase in the demand for commercial incineration services.  Impacts are not
significant for small, rural, remote HMIWI operators under regulatory options one and two.
Under regulatory options three through six, on the other hand, some of these facilities are
significantly impacted and might therefore have to shut down.

Table 22 shows the impacts that would be incurred by medical waste generators that currently use
an offsite waste incineration service. These impacts range from 0% to 0.02% and are considered
negligible impacts. These results indicate that the incremental costs for the vast majority of
medical waste generators are expected to be small.
                                            46

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                                   Table 22
                  Hospital/Medical/Infectious Waste Incineration
Per Facility Impacts For Firms that Utilize Oflsite Waste Incineration - Existing Sources
            Incremental Annual Cost as a Percent of Revenue/Budget (*/«)
Industry
Hospitals
<50 Beds
50-99 Beds
100-299 Beds
300+ Beds
Nursing Homes
0-19 Employees
Tax-paying
Tax-exempt
20-99 Employees
Tax-paying
Tax-exempt
100+ Employees
Tax-exempt
Tax-paying
Commercial Research Labs
Tax-paying
0-19 Employees
20-99 Employees
100+ Employees
Tax-exempt
Outpatient Care Clinics
Physicians clinics (Amb. Care)
Tax-paying
Tax-exempt
Freestanding kidney dialysis facilities
Tax-paying
Tax-exempt
Physicians offices
Dentists offices and clinics
Offices
Clinics
Tax-paying
Tax-exempt
Medical & dental Labs
Medical
Dental
Freestanding blood banks
Funeral Homes
Fire & Rescue
Corrections
Federal Government
State Government
Local Government
Incremental Annual Cost as a Percent of Revenue
0-0.01
0-0.01
0-0.01
0-0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0-0.01
0
0
0
0
0-0.01
0-0.01
0-0.02
0
0
0
0
0
                                      47

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This economic impact analysis examines industries that are directly impacted by the regulation,
namely industries that generate or treat medical waste. Secondary impacts such as those on air
pollution device vendors and HMIWI vendors were not evaluated due to data limitations.
However, it can be said that air pollution device vendors are expected to experience an increase in
demand for their products due to the regulation.  The regulation is also expected to increase the
demand for commercial HMIWI services. Due to economies of scale, however, there is likely to
be a demand shift from smaller incinerators to larger incinerators. Therefore, vendors of small
HMIWI potentially may be adversely affected by the regulation.

5.9    Facility Specific Impacts - New Sources

Facility-specific impacts were also estimated for the affected industries for new sources.  These
estimates, presented in Tables 23 and 24, were calculated for the three switching scenarios.  A
cost as a percent of revenue/budget ratio was calculated to provide an indication of the magnitude
of the impact of the regulation on an uncontrolled facility in each industry sector.  This calculation
was then compared to the Industry wide price impact to determine if the facility's  impacts differ
significantly from the average Industry wide impacts. A determination of significance - implying
that the facility price increase may not be achievable - is made for all but commercial HMTWI
operators if the facility price increase exceeds the average industry-wide, or "market" price
increase by more than one percentage point. For commercial HMIWI operators, the facility price
increase is considered significant if it exceeds the market price increase by more than two
percentage points.  More pricing latitude is given to commercial HMIWI operators for two
reasons:  1) commercial incineration is not subject to the same institutional pricing constraints as
the health care sector, and 2) commercial incineration fees could actually get a boost from the
regulation as  a result of switching from on-site incineration and an increase in the  demand for
commercial incineration services. Where significance is found, the impact on net income
(earnings) of absorbing control costs is estimated and evaluated.

For industries other than commercial incineration, Tables 23 and 24 show that facilities with
onsite HMTWI that are currently uncontrolled may experience impacts ranging from 0.03% to
1.70%,  depending on the industry, regulatory option, and scenario analyzed.

For commercial incineration the cost to revenue/budget ratio is 19.35%. A comparison of the
facility-specific economic impacts expected to occur under the three switching scenarios,
presented in Tables 23 and 24, to the anticipated market price increases indicates the impacts for
facilities that operate on-site HMTWI are generally insignificant. For many of the uncontrolled
model facilities, the economic impacts from switching to an alternative method of waste  disposal
are much lower than the economic impacts from installing emission control equipment. These
results indicate that the option of switching to a  lower cost alternative for waste disposal will be
                                            48

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                                                           Table 23
                                         Hospital/Medical/Infectious Waste Incineration
                         Per Facility Impacts Assuming No Switching and Onsite Incineration - New Sources
                                        Control Cost as a Percent of Revenue/Budget (%)
Industry
Hospitals - Short term, excluding psychiatric:
Federal Government
Small
Urban
Rural
Medium
Large
State Government
Small
Urban
Rural
Medium
Large
Local Government
Small
Urban
Rural
Medium
Large
Not-for-profit
Small
Urban
Rural
Medium
Large
For-profit
Small
Urban
Rural
Medium
Large
Hospitals - Psychiatric, short term and long term:
Small
Urban
Rural
Medium
Large
Nursing Homes:
Tax-Paying
Urban
Rural
Tax-exempt
Urban
Rural
Commercial research labs
Tax-paying
Tax-exempt
Commercial Incineration Facilities*
Option 1



0.37
0.37
0.37
0.18


0.78
078
0.39
0.10


1.22
1.22
0.59
0.13


083
0.83
0.43
0.15


0.93
0.93
0.46
0.19


1.28
1.28
1.06
064


1.39
1.39

1.42
1.42

0.75
0.75
19.35
Option 2



0.37
0.37
0.38
0.18


0.78
0.78
0.40
0.10


1.22
1.22
0.16
0.13


0.83
0.83
0.45
0.15


0.93
0.93
0.48
0.19


1.28
1.28
1.10
064


1 39
1 39

1 42
1.42

0.78
0.78
19.35
Option 3



0.42
0.42
0.38
0.18


0.90
0.90
0.40
0.10


1.40
140
0.61
0 13


0.95
0.95
045
0 15


1.07
1.07
0.48
0.19


1 47
1.47
1 10
064


1.59
1.59

1.63
1.63

0.78
0.78
19.35
"This cost to revenue ratio reflects the cost to new HMIWI that would otherwise have been completely uncontrolled.
                                                             49

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                                                 Table 24
                               Hospital/Medical/Infectious Waste Incineration
Per Facility Impacts Assuming Switching from Onsite Incineration to Commercial Disposal Alternatives - New Sources
                      Alternative Waste Disposal Cost as a Percent of Revenue/Budget (%)

Industry
Hospitals - Short term, excluding psychiatric:
Federal Government-
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
State Government:
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
Local Government.
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
Not-for-profit
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
For-profit
Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
Hospitals - Psychiatric, short term and long term: Small - Urban
Rural
Medium - Urban
Rural
Large - Urban
Rural
Nursing Homes: Tax-Paying - Urban
Rural
Tax-exempt- Urban
Rural
Commercial research labs: Tax-paying - Urban
Rural
Tax-exempt- Urban
Rural
Scenario B - Switching With
Waste Segregation


0.03
0.03
0.05
0.05
0.08
0.11

0.06
0.08
0.05
0.07
0.05
0.06

0.09
0.13
0.07
0.10
0.06
0.08

0.06
0.09
0.05
0.08
0.07
0.10

0.07
0.10
0.06
0.08
0.09
012
0.10
0 14
013
0 19
029
0.40
0.11
0.15
0.11
0.15
0.09
0.13
0.09
0.13
Scenario C - Switching
Without Waste Segregation


0.10
0.17
0.17
027
0.29
047

022
036
0.18
029
0.16
0.27

034
0.56
0.27
0.44
022
036

0.23
0.38
0.20
0.32
0.25
0.41

026
0.43
0.21
0.34
0.32
052
0.36
0.59
048
078
1.05
1.70
0.39
0.64
0.40
0.65
0.34
0.56
0.34
0.56
                                                    50

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an attractive option for some facilities currently using an onsite HMTW1.  The decision to switch
to an alternative method of waste disposal should preclude most facilities from experiencing a
significant economic impact. These results support our assertion that implementation of the
regulation will likely result in either scenarios B or C and that the costs and economic impacts of
scenario A are unlikely to occur.

Two types of HMIWI operators may not be able to switch to an alternative, however:
commercial HMIWI operators, because their line of business is commercial incineration; and on-
site HMIWI that burn a small amount of waste and are located far away from an urban area,
because they may not have access to waste hauling and/or commercial incineration services.
However, only a few, if any, of the projected 10  new commercial HMIWI over the next five
years, and, at the most, only a few of the projected 85 new small on-site HMIWI over the next
five years, are likely to be significantly impacted by the regulation (under all three regulatory
options). A "significant impact" does not necessarily imply a facility closure or the need to cancel
plans to open up, or expand, a facility. For example, operators of small, remote on-site HMIWI
may still have switching opportunities. As the commercial incineration industry continues to grow
(with additional impetus being provided by the EG and NSPS), it is possible that services will be
extended to remote, isolated areas that are currently not served. On-site autoclaving is another
possible treatment alternative.  If a facility had planned to invest in a new HMTWI, it stands to
reason that an on-site autoclave unit of comparable cost would be affordable. Additionally, a
facility that had planned - by virtue of operating  an on-site HMTWI - to open in a remote area
without access to commercial incineration services, might be able to reconsider its location
decision, and locate instead in an area with such access.

Table 25 shows the impacts that would be incurred by medical waste generators that currently use
an offsite waste incineration service. These impacts range from 0% to 0.02% and are considered
negligible impacts. These results indicate that the incremental costs for the vast majority of
medical waste generators are expected to be small.

This economic impact section examines possible economic impacts that may occur in industries
that will be directly affected by this regulation. Therefore, the analysis includes an examination of
industries that generate medical waste or dispose medical waste.  Secondary impacts such as
subsequent impacts  on air pollution device vendors and HMTWI vendors are not estimated due to
data limitations.  Air pollution device vendors are expected to experience an increase in demand
for their products due to the regulation. This regulation is also expected to increase demand for
commercial HMIWI services. However, due to economies of scale, this regulation is expected to
shift demand from smaller incinerators to larger incinerators. Therefore, small HMTWI vendors
potentially may be adversely affected by the regulation.  Lack of data on the above effects prevent
quantification of the economic impacts on these secondary sectors.
                                            51

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                              Table 25
             Hospital/Medical/Infectious Waste Incineration
Per Facility Impacts For Firms that Utilize Oflsite Incineration - New Sources
       Incremental Annual Cost as a Percent of Revenue/Budget (%)
Industry
Hospitals
.50 Beds
50-99 Beds
100-299 Beds
300+ Beds
Nursing Homes
0-19 Employees
Tax-paying
Tax-exempt
20-99 Employees
Tax-paying
Tax-exempt
100+ Employees
Tax-exempt
Tax-paying
Commercial Research Labs
Tax-paying
0-19 Employees
20-99 Employees
100+ Employees
Tax-exempt
Outpatient Care Clinics
Physicians' clinics (Amb. Care)
Tax-paying
Tax-exempt
Freestanding kidney dialysis facilities
Tax-paying
Tax-exempt
Physicians offices
Dentists offices and clinics
Offices
Clinics
Tax-paying
Tax-exempt
Medical & dental Labs
Medical
Dental
Freestanding blood banks
Funeral Homes
Fire & Rescue
Corrections
Federal Government
State Government
Local Government
Incremental Annual Cost as a Percent of Revenue
0-0.02
0-0.01
0-0.01
0-0.01
0
0-0.1
0-0.01
0-0.01
0-0.1
0-0 1
0
0
0-0.1
0-0.1
0-0.01
0-0.01
0-0.01
0-0.01
0
0
0
0
0-0.01
0-0.02
0.01-0.03
0
0
0
0
0
                                 52

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VI     BENEFITS ANALYSIS

A benefit analysis of proposed guidelines and standards for new and existing hospital/ medical/
infectious waste incinerators was contained in Medical Waste Incinerators - Background
Information for Proposed Standards and Guidelines: Regulatory Impact Analysis for New and
Existing Facilities8 (the 1994 HMIWIRIA). Changes in the regulatory options being considered
and the resulting changes in pollutant emissions from new and existing HMIWI have necessitated
a revision to the 1994 benefits analysis. This section incorporates the updated estimates of the
emission changes to provide a revised benefit analysis of some of the regulatory options under
consideration for the final HMIWI rulemaking.

As is discussed in the 1994 HMIWI RIA and is discussed again below, the lack of data regarding
the quantitative relationship between ambient exposure to HAPs and health status prevented (and
still prevents) development of quantitative benefit estimates in the appropriate framework to
compare with cost estimates.  As a result, quantifiable benefits are not expected to exceed
quantifiable costs for any of the regulatory options under consideration.

As discussed previously in developing the final HMIWI rule, six regulatory options were
considered for existing sources and three regulatory options were considered for new  sources.
For each of these regulatory options, the costs and emission impacts were evaluated under the
three "switching" scenarios (A, B, and C). It is likely that actual conditions for "switching" will
lie between scenarios B and C. Qualitative benefits are discussed below for the various pollutants.
Quantitative benefits of the regulatory options under scenarios B and C are then presented, along
with a comparison of quantifiable benefits with costs.

6.1     Emission Changes

Each of the regulatory options under consideration are expected to reduce HMIWI emissions of
the following pollutants:

Hazardous Air Pollutants
       •      Cadmium (Cd)
              Hydrochloric Acid (HC1)
              Lead (Pb)
       •      Mercury (Hg)

Dioxins
       •      2,3,7,8 - chlorinated dibenzodioxins (CDD)
       •      2,3,7,8 - chlorinated dibenzofurans (CDF)
       •      Toxic Equivalent Quantity (TEQ)
                                           53

-------
Criteria Air Pollutants
       •       Paniculate Matter (PM)
              Sulfur Dioxide (SO2)
       •       Carbon Monoxide (CO)
       •       Nitrogen Oxides (NOJ

Each of these categories is discussed below.

6.2    Hazardous Air Pollutants

       The 1994 HMIWI RIA summarized the health effects associated with exposure to
hazardous air pollutants (HAPs). The health effects include probable carcinogenic effects
associated with exposure to Cd and Pb, and respiratory effects associated with exposure to Cd,
HC1, and Hg.  The HAPs emitted from HMTWI facilities have also been associated with effects on
the central nervous system, neurological system, gastrointestinal system, mucous membranes, and
kidneys.

       Although the reductions in the emissions of HAPs are  expected to reduce the adverse
health effects mentioned above, the lack of data regarding the quantitative relationship between
ambient exposure to HAPs and health status prevented the development of quantitative benefit
estimates in both the 1994 and the current benefit analyses.  To provide some idea of the impact
of the promulgated HMTWI standards and guidelines, Tables 26 and 27 present estimates of the
baseline HAP emissions from HMTWI and the emission reductions associated with the regulatory
options under consideration for existing and new sources, respectively. All of the options under
consideration significantly reduce the HAP emissions from both new and existing HMIWI.
Without information on the quantitative relationship  between ambient exposure to these pollutants
and human health, however, the magnitude of the improvement in health associated with these
emission reductions cannot be ascertained.

6.3    Dioxins

The regulatory options under consideration are expected to reduce emissions of CDD, CDF, and
TEQ.  A detailed  qualitative discussion of the health effects of CDD and CDF was contained in
the 1994 HMIWI RIA. Briefly, the 1994 RIA stated that exposure to CDD/CDF has been linked
to reproductive and developmental effects, changes in hormone levels, and chloracne.  Since the
 1994 HMTWI RIA,  TEQ has been developed as a measure of the toxicity of dioxins.  TEQ
measures the more chlorinated compounds of dioxin and thus provides a better indicator of the
part of dioxin that has been linked to the toxic effects associated with CDD/CDF. Unfortunately,
quantitative relationships between the toxic effects mentioned above and exposure to CDD/ CDF
and TEQ have not been developed. Therefore, quantitative estimates of the health effects of
dioxin emission reductions cannot be provided for the current benefit analysis.
                                           54

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                    Table 26
HAP BASELINE AND EMISSION REDUCTION ESTIMATES
             FOR EXISTING SOURCES
                   (tons/year)

SCENARIO B
Cd
HC1
Pb
Hg
SCENARIO C
Cd
HC1
Pb
Hg
Baseline
Emissions
1.33
6,300
11.9
16.0

1 33
6,300
11 9
160
EMISSION REDUCTIONS
Option 1
0.90
4,981
8.4
146

0.65
3,978
62
139
Option 2
1.12
6,156
10.4
15.2

1.00
6,147
95
148
Option 3
1.13
6,215
10.5
15.2

1 01
6,206
9.6
14.9
Option 4
1.13
6,215
10.5
15.2

1 01
6,206
96
14.9
Option 5
1.13
6,215
10.5
15.2

1 01
6,206
9.6
149
Option 6
1.13
6,215
105
152

1.01
6,206
96
149
                    Table 27
HAP BASELINE AND EMISSION REDUCTION ESTIMATES
               FOR NEW SOURCES
                   (tons/year)

SCENARIO B
Cd
HC1
Pb
Hg
SCENARIO C
Cd
HC1
Pb
Hg
Baseline
Emissions
0.056
70.6
0.429
0.235

0.056
70.6
0.429
0.235
EMISSION REDUCTIONS
Option 1
0051
68.9
0.394
0.173

0.046
67.1
0.363
0.107
Option 2
0051
68.9
0.394
0.173

0.046
67.1
0.363
0.107
Option 3
0.051
68.9
0.394
0.173

0.046
67.1
0.363
0.107
                      55

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Table 28 and 29 summarize the impact of the regulatory options on HMTWI CDD/CDF and TEQ
emissions. All regulatory options under consideration will significantly reduce dioxin emissions
from HMIWI. Although it is probable that the adverse health risks associated with exposure to
CDD/CDF and TEQ will be reduced as a result of the final HMIWI regulation.
                                      Table 28
                DIOXIN BASELINE AND EMISSION REDUCTION ESTIMATES
                               FOR EXISTING SOURCES
                                       (g/year)

SCENARIO B
CDD/CDF
TEQ
SCENARIO C
CDD/CDF
TEQ
Baseline
Emissions
7,219
148

7,219
148
EMISSION REDUCTIONS
Option 1
6,831
139

6,625
135
Option 2
7,007
143

6,910
141
Option 3
7,015
143

6,917
141
Option 4
7,015
143

6,917
141
Option 5
7,017
143

6,917
141
Option 6
7,017
143

6,917
141
                                       Table 29
                DIOXIN BASELINE AND EMISSION REDUCTION ESTIMATES
                                 FOR NEW SOURCES
                                       (g/year)

SCENARIO B
CDD/CDF
TEQ
SCENARIO C
CDD/CDF
TEQ
Baseline
Emissions
466
1.07

466
1.07
EMISSION REDUCTIONS
Option 1
40.7
1.0

35.0
10
Option 2
40.7
1.0

35.0
1.0
Option 3
40.7
1.0

407
1 0
                                         56

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6.4    Criteria Air Pollutants

Several criteria pollutants will be impacted by the end of regulatory options under consideration.
Table 30 and 31 report the baseline HMIWI emissions of PM, SO2, CO, and NOX, and the
expected reductions in emissions resulting from the regulatory options for existing and new
sources.

The health and welfare effects of exposure to PM were qualitatively discussed in the 1994 HMIWI
RIA.  The health effects associated with exposure to PM include premature mortality as well as
morbidity.  The morbidity effects of PM exposure have been measured in terms of increased
hospital and emergency room visits, days of restricted activity or work loss, increased respiratory
symptoms, and reductions in lung function.  The welfare effects of PM exposure include increased
soiling and visibility degradation.

SO2 has been associated with respiratory symptoms and pulmonary function changes in exercising
asthmatics and may also be associated with respiratory symptoms in non-asthmatics.  In addition
to the effects on human health, SO2 has also been linked to adverse welfare effects, such as
materials damage, visibility degradation, and crop and forestry damage.
                                         Table 30
          CRITERIA POLLUTANT BASELINE AND EMISSION REDUCTION ESTIMATES
                                 FOR EXISTING SOURCES
                                        (tons/year)

SCENARIO B
PM
SO2
CO
NOX
SCENARIO C
PM
SO2
CO
NOX
Baseline
Emissions
1,036
271
506
1,277

1,036
271
506
1,277
EMISSION REDUCTIONS
Option 1
823
62
407
292

697
0
378
0
Option 2
957
81
416
383

907
0
378
0
Option 3
960
81
416
383

911
0
378
0
Option 4
962
81
416
383

915
0
378
0
Option 5
963
83
417
390

922
0
378
0
Option 6
964
83
417
390

923
0
378
0
                                            57

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                                         Table 31
          CRITERIA POLLUTANT BASELINE AND EMISSION REDUCTION ESTIMATES
                                    FOR NEW SOURCES
                                        (tons/year)

SCENARIO B
PM
SO2
CO
NOX
SCENARIO C
PM
SO2
CO
NOX
Baseline
Emissions
30.4
31.3
14.9
148

30.4
31.3
14.9
148
EMISSION REDUCTIONS
Option 1
28.1
16
8
76

25.9
0
0
0
Option 2
28.1
16
8
76

25.9
0
0
0
Option 3
28.1
16
8
76

25.9
0
0
0
CO affects the oxygen-carrying capacity of hemoglobin and, at current ambient concentrations,
has been related to adverse health effects among persons with cardiovascular and chronic
respiratory disease.  Both congestive heart failure and angina pectoris have been related to CO
exposure.

NOX has also been shown to have an adverse impact on both human health and welfare.  The
effects associated with NOX include respiratory illness, damages to materials, crops, and forests,
and visibility degradation.

Concentration-response functions have been developed for the majority of the health and welfare
effects mentioned above. In these functions, a quantitative relationship between a specific health
or welfare end point and exposure is established.  Exposure, however, is generally measured by
models in terms of ambient concentration of a pollutant. To do this, facility specific information is
needed to determine how changes in control technologies  will impact pollutant concentrations in
the ambient air.  Because such data is not available, a direct application of these concentration-
response functions to the present analysis is not possible.

An approximation of the magnitude  of these effects can be obtained, however, using the results of
existing studies that have evaluated the health and welfare effects of reductions in pollutant
concentrations.  The Benefit-Cost Analysis  of Selected New Source Performance Standards for
                                            58

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Paniculate Matter* (1985) is particularly useful to develop quantitative benefit estimates for the
PM emission reductions.13 Unfortunately, no studies are representative or available to
approximate the benefits associated with the SO2, CO, and NOX emission reductions.

The Benefit-Cost Analysis of Selected New Source Performance Standards for Paniculate Matter
considered a diverse set of sources located in 721 different counties in the United States to
develop estimates of the benefits per ton of PM reduced. The benefit categories considered in this
analysis included mortality, morbidity, household soiling and materials damage. The national
weighted average (weighted by tons reduced) of benefit per ton values estimated for 1995 was
$6,075 (1993 dollars). Wide variations exist in the amount of benefits obtained across different
areas.  The value is dependent on the density of the exposed population, geographic and
meteorological conditions, and the ambient concentrations of PM.  As a result, the county specific
benefits per ton ranged from $0 to over $100,000.  This analysis assumes that the weighted value
of $6,075 per ton is representative on average.  With this value, the PM benefit estimates of the
regulatory options for Scenarios B and C are displayed in Table 32.
                                         Table 32
                 MONETIZED BENEFITS FOR HMIWI REGULATORY OPTIONS
                                  (thousands of 1993 dollars)
SCENARIO B
Existing Sources
New Sources
SCENARIO C
Existing Sources
New Sources
Option 1
$4,999.7
$170.6

$4,234.3
$157.3
Option 2
$5,813.8
$170.6

$5,510.0
$1573
Option 3
$5,838.1
$170.6

$5,534.3
$157.3
Option 4
$5,844.2
-

$5,558.6
-
Option 5
$5,856.3
-

$5,601 1
-
Option 6
$5,856.3
-

$5,607.2
-
       b Two more recent studies, The Benefits and Costs of the Clean Air Act, 1970 to 1990'°
and Regulatory Impact Analysis for Proposed Paniculate Matter National Ambient Air Quality
Standard" are expected to update these values. Since they are both currently in draft form, they
were not able to be used as of the completion of this analysis.
                                           59

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6.5    Qualifications

This analysis considers a subset of the total benefits that will accrue from the HMIWI rulemaking.
The EPA is not currently able to quantitatively evaluate all human and environmental benefits
associated the rule's air quality improvements, and is even more limited in its ability to assign
monetary values to these benefit categories.  Categories that are not evaluated include several
health and welfare endpoints (categories) as well as entire pollutant categories.  Therefore, it is
likely that the monetary estimate of benefits  is an underestimate of actual health and welfare
improvements that will result from the implementation of the rule.

There is also some uncertainty and variance in the values chosen to monetize benefits. Therefore,
the benefits reported in Table 32 should be viewed with respect to a number of qualifications.
First, the benefit per ton estimates implicitly assume that there is a linear relationship between
benefits and changes in emissions of pollutants from previous studies and the benefits associated
with emission reductions from the HMIWI rule.  If the relationship is  non-linear, the resulting
benefit estimates may  be biased. This may be particularly important if a threshold exists below
which ambient concentrations of a pollutant do not contribute to adverse human health or the
environmental impacts.

Second, the use of benefit per ton estimates from existing studies assumes that the population
distributions in these studies is not too dissimilar from the population  distributions of the areas
impacted by the HMIWI rule. Although the application of the benefit per ton estimates to any
one area impacted by  the regulation may be  inappropriate due to differences in population
distributions, the use of average benefit per ton estimates to develop aggregate benefit estimates
may be reasonable,  since variations in these  distributions are likely to  balance out in the aggregate.

Third, this analysis implicitly assumes that the PM emitted from HMIWI is similar in size and
composition to the PM emitted from the sources upon which the underlying PM benefit per ton
numbers are based. If the PM emitted from HMTWI facilities is significantly different from the
PM emitted from other types of sources, the benefits reported in Tables 7 may be biased.

Finally, a 1995 baseline is used to calculate the number of facilities existing in the industry, and to
estimate the number of new sources that will develop in a five year period. From this baseline,
control technology is  selected to facilitate the calculation of costs and emission reductions. The
actual date that benefits will begin to  accrue as a result of the emission reductions is uncertain,
therefore, this analysis presents the PM benefits with a 1995 baseline  (expressed in 1993 dollars).
Full implementation of the rule is not anticipated until the year 2002 for existing sources and the
year 2000 for new sources, although some sources will comply prior to these dates.  The year in
which annual emission reductions begin to accrue could alter the value placed on PM benefits due
to changes in population densities.  If reductions in exposures to PM  from HMIWI facilities
begins as late as 2002, then population growth from 1995 to 2002 would result in more exposures
and thus a higher benefit per ton value for PM. Thus the value presented this analysis may be an
underestimate.
                                            60

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6.6    Benefit-Cost Comparison

Benefit-cost comparison is another tool used to evaluate the reallocation of society's resources to
address the pollution problem created by HMTWI.  The additional costs of pollution control is
compared to the improvement in society's well-being from a cleaner and healthier environment.
Typically, a net benefit analysis uses total "social"cost in the comparison to monetized benefits.
First, since a welfare analysis was not conducted for these rules, the social costs of the regulations
are not estimated.  Engineering estimates of the costs of emission controls for the different
regulatory options are used as a proxy for the social costs of the regulations. Comparing benefits
of alternative control options to the costs imposed by the options  identifies the strategy that
results in the highest net benefit to society.  Secondly, the quantifiable benefits of this analysis are
limited by the data available on various health and welfare categories for the affected pollutants.
EPA is not able to assign monetary values to most of these benefit categories (both health and
welfare endpoints, as well as entire pollutant categories).  Therefore, the monetized benefits are
significantly underestimated, which in this case results in quantifiable costs exceeding the
quantifiable benefits. Thus, this comparison of benefits to costs can be utilized to evaluate the
option that minimizes the net costs to society. Tables 33 and 34 display the monetized benefits,
annualized costs, and net costs (monetized benefits minus annualized costs) of the HMTWI rule.
Option 1 under both scenarios minimizes net cost for existing sources.  The benefits that are
quantifiable for new sources have the same  level of emission reductions across each option and
therefore, the same monetary value.  Thus, the net cost presented in Table 34 is the same across
each regulatory option.  For Scenario B, net cost is $11.9 million  while Scenario C produces a net
cost of $26.0 million.
                                          Table 33
                       NET BENEFITS (COSTS) FOR EXISTING SOURCES
                                  (thousands of 1993 dollars)
SCENARIO B
Monetized Benefits
Annualized Costs
Net Benefit (Cost)
SCENARIO C
Monetized Benefits
Annualized Costs
Net Benefit (Cost)
Option 1
$4,999.7
$55,205.0
($50,205.3)

$4,234.3
$82,183.9
($77,949.6)
Option 2
$5,813.8
$59,155.3
($53,341.5)

$5,510.0
$119,726.9
($114,216.9)
Option 3
$5,838.1
$64,201.4
($58,363.3)

$5,534.3
$124,773.0
($119,238.7)
Option 4
$5,844.2
$64,961.2
($59,117.0)

$5,558.6
$126,394.0
($120,835.4)
Option 5
$5,856.3
$65,213.8
($59,357.5)

$5,601.1
$129,289.8
($123,688.7)
Option 6
$5,856.3
$66,327.5
($60,471.2)

$5,607.2
$130,737.2
($125,130.0)
                                            61

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                                       Table 34
                       NET BENEFITS (COSTS) FOR NEW SOURCES
                                (thousands of 1993 dollars)
SCENARIO B
Monetized Benefits
Annualized Costs
Net Benefit (Cost)
SCENARIO C
Monetized Benefits
Annualized Costs
Net Benefit (Cost)
Option 1
$170.6
$12,131.6
($11,961.0)

$157.3
$26,223.9
($26,066.6)
Option 2
$170.6
$12,131.6
($11,9610)

$157.3
$26,223.9
($26,066.6)
Option 3
$170.6
$12,131.6
($11,961.0)

$157.3
$26,223 9
($26,066.6)
VD    SMALL ENTITY IMPACTS AND UNFUNDED MANDATES

7.1     Small Entity Impacts

Section 605 of the Regulatory Flexibility Act (RFA) (5 U.S.C. 601 et seq.) requires Federal
agencies to give special consideration to the impacts of regulations on small entities, which are
small businesses, small organizations, and small governments.  The major purpose of the RFA is
to keep paperwork and regulatory requirements from getting out of proportion to the scale of the
entities being regulated without compromising the objectives of, in this case, the Clean Air Act.

The President signed the Small Business Regulatory Enforcement Fairness Act (SBREFA) into
law on March 29,1996.  The SBREFA amended the RFA to strengthen the RFA's analytical and
procedural requirements. The SBREFA also made other changes to agency regulatory practices
as they affect small entities. Finally, SBREFA established a new mechanism for expedited
congressional review of virtually all agency rules.12

The RFA as amended by SBREFA requires the Agency to make a determination as to whether a
regulation will have "a significant economic impact on a  substantial number  of small entities "
The  Administrator has determined that the EG and NSPS for HMIWI will not have a significant
impact on a substantial number of small entities.

The U.S. Small Business Administration (SBA) definitions pertaining to business size are either
specified by number of employees or sales revenue.  For analysis of the EG and NSPS regulations
being promulgated for FIMIWI, the EPA considers a small business or small organization to be
                                          62

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one with gross annual revenue less than $5 million or one with less than 500 employees.13  The
EPA considers a small government to be one that serves a population less than 50,000.14 Three
types of small "entities" are impacted by the regulation: small businesses, small nonprofit
organizations, and small governmental jurisdictions. Examples of impacted businesses include
for-profit hospitals and tax-paying nursing homes.  Examples of impacted nonprofit organizations
include not-for-profit hospitals and, in many cases,  tax-exempt nursing homes.  Examples of
impacted governmental jurisdictions include those (e.g., municipalities, counties, States) that
operate hospitals and probably some tax-exempt nursing homes.

In accordance with the RFA as amended by the SBREFA and current EPA Guidance, an analysis
of impacts of the EG and NSPS on small "entities"  - including small businesses, small nonprofit
organizations, and small governmental jurisdictions - was performed. The economic impact
analysis indicates that neither the EG nor the NSPS will have a "significant impact on a substantial
number of small entities" under any regulatory option. Impacts are not significant for the vast
majority of medical waste generators that send their waste off-site to be treated and disposed.
Impacts are also not significant for the great majority of HMIWI operators that would have the
opportunity to switch to an alternative method of medical waste treatment and disposal if control
costs are prohibitive. Some significant impacts were found for commercial HMIWI operators and
for small on-site HMIWI operators that are remote from an urban area. These facilities might not
have the opportunity to switch to an alternative medical waste treatment and disposal method -
commercial HMIWI operators because medical waste incineration is  their line of business, and
small, remote HMIWI because they may not have access to commercial incineration services

For the EG, only one commercial HMIWI operator that is a small business is significantly
impacted with a cost to sales ratio of 11.1 percent.  For reasons stated in Hospital/
Medical/Infectious Waste Incinerators: Background Information for Promulgated Standards and
Guidelines - Analysis of Economic Impacts for Existing Sources'5, it is quite possible that the
economic impacts to this firm may not be significant. Only 10 new commercial HMIWI are
projected for the period 1996 through 2000 for the NSPS.  The size of entities installing new
commercial HMIWI is not known, but based on the size distribution  of existing commercial
HMIWI, the fraction of the 10 new commercial HMIWI that will be operated by a small business
is likely to be a small. Significant economic impacts may occur for new commercial HMTWI that
are completely uncontrolled in the baseline, but the number of small entities affected is likely to be
quite small.  The Hospital/Medical/Infectious Waste Incinerators: Background Information for
Promulgated Standards and Guidelines - Analysis of Economic Impacts for New Source1^
provides more discussion of small entity impacts for new sources.

The number of small remote HMIWI operators that are small businesses is unknown. A total of
114 small remote HMIWI exist in the current inventory of HMIWI.  Based on the analysis
conducted in the economic impact analysis for existing sources, it was concluded that up to 57 of
the total 114 could be owned or operated by a small entity, and that these small entities could
have signficant economic impacts under regulatory options 3 through 6.  However, these firms
will not be significantly impacted under regulatory options 1 and 2 (i.e., these firms have cost to
                                           63

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sales ratios less than one percent).  The number of new HMIWI that will be operated by a small
entity and will be located in a remote area is unknown.  The projections of new HMIWI indicated
that 85 small incinerators are expected to be purchased in the period 1996 through 2000.  It is
possible that some portion of these new small incinerators will be owned and operated by a small
entity. Significant impacts  are possible for these entities (i.e., cost to sales ratios more that one
percent but less than three percent). However, the EPA believes that the number of new small
HMIWI operated by small entities in remote locations even without consideration of the NSPS
would be quite small. The  EPA believes that the availability of alternative methods of waste
disposal will increase in the future also and mitigate any significant impacts resulting from the
regulation.

Thus, the EPA concludes that the EG and the NSPS for HMIWI will not have a significant impact
on a substantial number of small entities. For further information concerning the analyses
conducted to meet the RFA and SBREFA requirements for the EG and NSPS, please refer to the
economic impact analyses for existing sources and new sources previously referenced.

7.2    Unfunded Mandate Issues

Under section 202 of the Unfunded Mandates Reform Act of 1995 ("Unfunded Mandates Act"),
signed into law on March 22, 1995, the EPA must prepare a statement to accompany any rule
where the estimated costs to State, local, or tribal governments, or to the private sector, will be
$100 million or more in any 1 year. Section 203 requires the EPA to establish a plan for
informing and advising any small governments that may be significantly impacted by the rule.
Under section 205(a), the EPA must select the "least costly, most cost-effective or least
burdensome alternative that achieves the objectives of the rule" and is consistent with statutory
requirements.  The EPA has complied with section 205 of the Unfunded Mandates Act, by
promulgating a rule that is  the most cost-effective alternative for regulation of these sources that
meets the statutory requirements under the Clean Air Act. Since this rule is estimated to impose
costs to the private sector and government entities in excess of $100 million per year, it is
considered a significant regulatory action.  Therefore, EPA must  consider issues relevant to the
Unfunded Mandates Act.

The unfunded mandates statement under section 202 must include among other things an
assessment of the costs and benefits of the rule including the effect of the mandate on health,
safety, and the environment. Chapters V and VI of this report discuss  the costs and benefits of
the EG and NSPS for HMTWI.
                                           64

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REFERENCES
 1. U.S. Environmental Protection Agency. Medical Waste Incinerators - Background
Information for Proposed Standards and Guidelines: Regulatory Impact Analysis for New and
Existing Sources.  EPA-453/R-94-063a. July 1994.

2. U.S. Environmental Protection Agency.  Addendum to Analysis of Economic Impacts for
Existing Sources.  EPA-453/R-94-048a. July 1994.

3. U.S. Environmental Protection Agency.  Addendum to Analysis of Economic Impacts for New
Sources.  EPA-453/R-94-048a.  July 1994.

4. U.S. Environmental Protection Agency.  Medical Waste Incinerators - Background Information
for Proposed Standards and Guidelines: Analysis of Economic Impacts for Existing Sources.
EPA-453/R-94-048a. July 1994.

5. U.S. Environmental Protection Agency.  Medical Waste Incinerators - Background Information
for Proposed Standards and Guidelines: Analysis of Economic Impacts for New Sources.  EPA-
453/R-94-048a. July 1994.

6.  "Cost Information for Existing HMIWI's." Memorandum submitted by Brian Strong, Midwest
Research Institute, to Linda Chappell, U.S. Environmental Protection Agency. March 17,  1997.

7.  "Cost Information for New HMIWI's." Memorandum submitted by Brian Strong, Midwest
Research Institute, to Linda Chappell, U.S. Environmental Protection Agency. February 21, 1997.

8. U.S. Environmental Protection Agency.  Medical Waste Incinerators - Background Information
for Proposed Standards and Guidelines Regulatory Impact Analysis for New and Existing
Facilities. EPA-453/R-94-063a, July  1994.

9. Horst, Robert L. Et al.  Benefit-Cost Analysis of Selected New Source Performance Standards
for Particulate Matter, Contract No. 68-02-3553. Final Report to the U.S. Environmental
Protection Agency, July 1985.

10. U.S. Environmental Protection Agency.  The Benefits and Costs of the Clean Air Act, 1970 to
1990. Draft Report prepared for U.S. Congress, October 1996.

11. U.S. Environmental Protection Agency.  Regulatory Impact Analysis for Proposed Particulate
Matter National Ambient Air Quality Standard. Draft Report prepared by Innovative Strategies
and Economic Groups, Office of Air Quality Planning and Standards (Research Triangle Park,
NC), December 1996.

12. U.S. Environmental Protection Agency SBREFA Task Force. " EPA Guidance for
Implementing the Small Business Regulatory Enforcement Fairness Act and Related Provisions of
                                          65

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the Regulatory Flexibility Act." February 5, 1997.

13.  Small Business Administration. "Small Business Size Standards." 13 Code of Federal
Register, Part 121. January 31, 1996 (Volume 61, Number 21).

14.  Office of Regulatory Management and Evaluation.  "EPA Guidelines for Implementing the
Regulatory Flexibility Act." April 1992.

15. U.S. Environmental Protection Agency. Medical Waste Incinerators - Background
Information for Proposed Standards and Guidelines: Analysis of Economic Impacts for Existing
Sources. EPA-453/R-97-007b.  July 1997.

16. U.S. Environmental Protection Agency. Medical Waste Incinerators - Background
Information for Proposed Standards and Guidelines: Analysis of Economic Impacts for New
Sources. EPA-453/R-97-008b.  July 1997.
                                          66

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                                    TECHNICAL REPORT DATA
                               (Please read Instructions on reverse before completing)
  1. REPORT NO.
    EPA-453/R-97-009b
                                                                    3. RECIPIENT'S ACCESSION NO.
 4. TITLE AND SUBTITLE
    Hospital/Medical/Infectious Waste Incinerators: Background
    Information for Promulgated Standards and Guidelines -
    Regulatory Impact Analysis for New and Existing Facilities
                  5. REPORT DATE
                    July 1997
                  6. PERFORMING ORGANIZATION CODE
 7. AUTHOR(S)
                  8. PERFORMING ORGANIZATION REPORT NO.
 9. PERFORMING ORGANIZATION NAME AND ADDRESS
                                                                    10. PROGRAM ELEMENT NO.
    Air Quality Strategies and Standards Division (Mail Drop 15)
    Office of Air Quality Planning and Standards
    U.S. Environmental Protection Agency
    Research Triangle Park, NC  27711
                  11. CONTRACT/GRANT NO.
  12. SPONSORING AGENCY NAME AND ADDRESS

    Director
    Office of Air Quality Planning and Standards
    Office of Air and Radiation
    U.S. Environmental Protection Agency
    Research Triangle Park, NC  27711
                                                                    13. TYPE OF REPORT AND PERIOD COVERED
                     Final
                  14. SPONSORING AGENCY CODE

                     EPA/200/04
  15. SUPPLEMENTARY NOTES
         Published in conjunction with promulgated air emission standards and guidelines for
         hospital/medical/infectious waste incinerators
  16. ABSTRACT
  The Regulatory Impact Analysis attempted to compare the costs to the benefits expected from the
  implementation of standards and guidelines. The cost and economic impact discussion refers to two
  "Ananysis of Economic Impacts" reports (EPA-453/R-97-007b and EPA-453/R-97-008b).  A qualitative
  discussion of relevant benefit categories is presented. Due to lack of data regarding the benefits
  associated with reducing specific pollutants, only a few benefit categories were quantified.  Therefore, a
  direct comparison of costs to benefits was not possible.
 17.
                                      KEY WORDS AND DOCUMENT ANALYSIS
                    DESCRIPTORS
                                                  b. IDENTIFIERS/OPEN ENDED TERMS
                                                                                      c. COSATI Reid/Group
   Air Pollution
   Pollution Control
   Standards of Performance
   Emission Guidelines
   Medical Waste Incinerators
   Hospital/Medical/Infectious Waste
      Incinerators
Air Pollution Control
Solid Waste
Medical Waste
Incineration
Hospital Waste
Infectious Waste
 18. DISTRIBUTION STATEMENT

   Release Unlimited
19. SECURITY CLASS (Report)
   Unclassified
                                                                                      21. NO. OF PAGES
                                                  20. SECURITY CLASS (Page)
                                                     Unclassified
                                                                                      22. PRICE
EPA Form 2220-1 (Rev. 4-77)   PREVIOUS EDITION IS OBSOLETE

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