U.S. ENVIRONMENTAL PROTECTION AGENCY
AND
U.S. DEPARTMENT OF TRANSPORTATION
TRANSPORTATION-AIR QUALITY PLANNING GUIDELINES
June 1978

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FOREWORD
The U.S. Environmental Protection Agency and the U.S. Department of
Transportation are jointly Issuing these transportation-a1r quality
planning guidelines 1n response to Section 108(e) of the Clean Air Act,
as amended August 1977. Section 108(e) requires EPA to consult with DOT
In preparing guidelines for the development of transportation system
components of State Implementation Plans for areas that are designated
air quality nonattalnment areas with respect to photochemical oxidants
and/or carbon monoxide. EPA and DOT view these guidelines as a signifi-
cant step forward 1n our mutual efforts to integrate our related planning
processes and better meet the objectives of both agencies.
Brock Adams
Secretary

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PREFACE
Section 108(e) of the Clean A1r Act as amended, August 1977, directs
the U.S. Environmental Protection Agency 1n consultation with the U.S.
Department of Transportation and other agencies to supplement these
guidelines "from time to time." This guidance issued jointly by EPA and
DOT may well be supplemented 1n the future as experience 1s gained
through actual applications. These guidelines 1n their current form do,
however, describe an acceptable process for accomplishing the continuing
tasks of transportation-^r quality planning and programming required by
the Clean Air Act.
The Transportation^ r Quality Planning Guidelines must be adapted
to the specific circumstances of each nonattainment area. Lead planning
agencies along with other participating agencies and groups are encouraged
to meet quickly with EPA and DOT Regional Offices to discuss detailed
questions on guideline Interpretation and implementation. For example,
two areas that particularly require further discussion and guidance are
the: (1) exact form of transportation provisions 1n the 1979 SIP
submittal and (2) the precise scope of the alternatives analyses.
Additional guidance that will supplement these guidelines 1s currently
being prepared to implement Section 110(a)(3)(D) of the Act. This section
requires nonattainment areas demonstrating the need for a standard attain-
ment deadline extension to 1987 to submit a public transportation
Improvement program. This SIP revision must establish, expand or improve
public transportation to meet basic transportation needs as expeditiously
as practicable. A commitment to prepare and carry out such a program
must be Included 1n the January 1, 1979 SIP submission. The additional
procedural and substantive guidance will explain the analysis of
transportation needs and the development of a public transportation
improvement program as part of the alternatives analyses discussed in
Section III. E. of these guidelines.

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TABLE OF CONTENTS
TRANSPORTATION-AIR QUALITY PLANNING GUIDELINES
Page
FOREWORD	1
PREFACE	H
Table of Contents for Guidelines	111
Table of Contents for Appendices	1v
Organization of Guidelines	v
Guideline Development Schedule	v1
Major Dates of SIP Revision Process	vi1 *
EXECUTIVE SUMMARY	vH1
I. INTRODUCTION	1
A.	Purpose	1
B.	Applicability	1
C.	Funding	2
D.	Background	4
II. SIP POLICY	6
A.	Overall Summary	6
B.	Selected SIP Requirements	7
III. PROCESS	14
A.	Introduction	14
B.	Interagency Coordination	14
C.	Involvement of Elected Officials	15
D.	Public Information and Consultation	15
E.	Evaluation of Alternative Strategies	17
IV. MODIFICATION AND DOCUMENTATION OF EXISTING	21
PLANNING ACTIVITIES
A.	Introduction	21
B.	Planning Work Programs	21
C.	Transportation Plan	21
D.	Transportation Improvement Program	22
E.	Documentation of Alternatives Analysis	22
F.	Consistency Determination Documentation	23
G.	SIP	23
V. PROGRESS REPORTS	23
A.	Introduction	23
B.	Content	24
C.	Annual Report	24
FOOTNOTES	25

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TABLE OF CONTENTS FOR APPENDICES
APPENDIX	Page
A TRANSPORTATION-RELATED PROVISIONS OF	1
THE CLEAN AIR ACT
B CRITERIA FOR APPROVAL OF 1979 SIP	9
REVISIONS
C SIP REVISION PROCESS	23
D DEFINITIONS	27
E BACKGROUND INFORMATION ON TCP PROGRAM	31
F FUNDING	35
G EVALUATION OF ALTERNATIVE STRATEGIES	42
H FHWA/UMTA ACTION MEMO	45
I HUD-EPA AGREEMENT	47
J SUMMARY OF RELATED EPA GUIDELINES AND	50
REGULATIONS
K DOT PLANNING AND PROGRAMMING REGULATIONS	52
(23 CFR 450)

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ORGANIZATION OF THE GUIDELINES
Following the PREFACE which contains five subsections and the EXECUTIVE
SUMMARY beginlng on page v11, the Guidelines are organized into five major
chapters and a separate accompanying document with 11 Appendices (A-K).
The APPENDICES contain extensive supporting and reference material that
while relevant is not an Integral part of the guidelines.
The INTRODUCTION covers the following aspects of the guidelines:
(1) Purpose, Including the basic policy goal; (2) Applicability, including
the primary roles of the lead agency as well as DOT and EPA Regional
Offices; (3) Funding — authorized (but not yet appropriated) and available
funds; and (4) Background, including the relationship of the guidelines
to the original transportation control planning process and the existing
process administered by DOT.
Chapter II, SIP POLICY, summarizes and elaborates upon the trans-
portation portions of a major EPA policy memorandum, "Criteria for
Approval of 1979 SIP Revisions." This memorandum signed by the EPA
Administrator on February 24, 1978 1s wholly contained 1n Appendix B.
Chapter II also provides an abbreviated checklist of the major trans-
portation-related requirements of an acceptable 1979 SIP.
Chapter III, PROCESS, presents the procedural part of the guidelines
by describing the elements of the integrated transportatlon-air quality
planning process designed to accomplish the policy goal and SIP require-
ments of Chapters I and II. Chapter III defines procedures for:
(1) Interagency Coordination, (2) Elected Official Involvement, (3) Public
Information and Consultation, and (4) Evaluation of Alternative Strategies.
Chapter IV describes: (1) modifications to ongoing transportation
planning activities required by the Clean'Air Act and (2) documentation
of those modifications. Chapter IV discusses the Planning Work Programs,
Transportation Plan, Transportation Improvement Program, Alternatives
Analysis, Consistency Determination and the SIP.
Chapter V concludes the Guidelines with a discussion of the purpose,
frequency and content of progress reports.

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DEVELOPMENT SCHEDULE
EPA TRANSPORTATION-AIR QUALITY PLANNING PROCESS GUIDELINES
November 28, 1977
November 28-29, 1977
February 1, 1978
February 9, 1978
February 27, 1978
March 13, 1978
March 14-15, 1978
June 1978
Post June 1978
0 First Draft Circulated
° Review by MPO Steering Group
(NARC Grant)
0 End of Comment Period on First
Draft
0 Review by Panel of Transportation
Experts
° Second Draft Circulated
0 Briefing for EPA Regional Offices
on Second Draft
° Major EPA-DOT Workshop on Second
Draft (NARC Grant)
° EPA and DOT Jointly Issue Planning
Process Guidelines
° Joint EPA-DOT Regional Meetings
° Modifications of FHWA-UMTA Regulations
to Reflect Guidelines

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MAJOR DATES OF SIP REVISION PROCESS
February 7, 1978
April 1, 1978
January 1, 1979
July 30, 1980
July 1, 1982
December 31, 1982
1983 - December 31, 1987
Jointly Determined Division of
Responsibilities
Lead Planning Organization Designated
by Local Officials
Governor Certifies or Designates Lead
Planning Organization*
State Submits Revised Plan
Suggested Date for Completion of
Comprehensive Alternatives Analysis
Second State Submittal of Revised Plan
If Extension Granted
Standards Attainment Deadline Where No
Extension Granted
Initiation of Extensive Transportation
Measures
Standards Attainment Deadline Where
Extension Granted
~If for example the MPO prepares the transportation portion of the
SIP, then one key decision at the local level would be the interim
date by which the MPO submits the transportation portion to the
state so that adequate time remains to Integrate this portion with
the stationary source part of the SIP and meet the statutory submittal
deadline of January 1, 1979.

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EXECUTIVE SUMMARY
Selected Requirements of the Clean Air Act
The Clean A1r Act as amended, August 1977, establishes various federal,
state and local requirements aimed at the expeditious attainment of the
air quality health standards. The Act requires achievement of these
standards by December 31, 1982. However, for carbon monoxide (CO) and
photochemical oxidants (Ox) a five-year extension to 1987 can be granted.
This extension is contingent on a state demonstrating 1n Its 1979 State
Implementation Plan (SIP) that attainment Is not possible by 1982 despite
the Implementation of all reasonable stationary and transportation
control measures.
Most major urban areas with CO and Ox problems will be unable to meet
the air quality health standards by 1982 through reliance on stationary
source controls and federal new car standards alone. These areas there-
fore will be required to develop and Implement such transportation
strategies as mass transit Improvements, preferential bus and carpool
treatment, areawlde carpool programs, parking management, pricing, auto-
restricted zones, etc. — which are all designed to reduce auto emissions.
Revised SIPs that Include programs to reduce both stationary and trans-
portation system emissions must be submitted to EPA by January 1, 1979.
(Table 1 on page 8 provides an abbreviated checklist of the major
transportation-related requirements of an acceptable 1979 SIP.)
The Act emphasizes — especially for the transportation portion of
SIPs — locally developed plans that result from: (1) extensive consulta-
tion among federal, state, regional and local agencies; (2) public
education and participation; (3) elected official Involvement; and
(4) the documented analysis of a wide ran£e of alternative strategies.
The Act specifies that the transportation-air quality planning process
be coordinated with the continuing, cooperative, and comprehensive
C"3C") transportation planning process administered by the Department
of Transportation.
Local governments and organizations of local elected officials are
explicitly encouraged to assume greater responsibilities in the develop-
ment and implementation of SIPs. The Clean Air Act indicates a preference
for the certification by Governors of metropolitan planning organizations
(I.e., the DOT "3C" agencies) as the lead agencies for preparing control
plans in urban areas that are nonattalnment with respect to CO and Ox.
The Amendments of 1977 authorize new planning funds ($75 million) to
organizations of local elected officials for a two-year period and also
provide for new funding sanctions for failure to develop and Implement

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adequate plans. It appears that approximately $25 million may be
appropriated 1n fiscal year 1979 to support the first year of the
planning process.
The Act calls for EPA to cooperate with DOT In preparing Information
documents on the costs, effects and analytical techniques for selecting
transportation measures and developing strategies. (Information is
being prepared on an extensive array of transportation Improvements,
covering: public transit, traffic operations, parking management, pricing,
and auto-restricted zones among others.) EPA must also consult with
DOT and other officials In the development of guidelines on the basic
elements of the planning.process for nonattainment areas. These jointly
issued transportation-air quality planning guidelines are the result of
that consultation.
SIP Policy
EPA has established reasonable and achievable SIP requirements and will
take a firm posture on the imposition of sanctions where the requirements
are not achieved. An extension of the deadline to 1987 for standard
attainment 1s not automatic; a demonstration of need must be made and
the state must fulfill the other statutory requirements In the Act. The
transportation requirements of the 1979 SIP place primary emphasis on
a commitment to a continuing process.
Since reliance on stationary controls and federal new car standards
alone will not enable most areas with Ox and CO problems to meet
standards by 1982, additional specific measures must be Included
in the 1979 SIP to reduce transportation system emissions. The 1979
SIP requirements Include a commitment to: (1) accelerated Implementation
of specific strategies (e.g., transportation Improvements contained 1n
the current or recent annual element (AE)); (2) the incremental phase-
In of additional strategies (e.g., other measures contained in the
transportation improvement program (TIP) that appear reasonable and
effective on the basis of preliminary analysis); and (3) a schedule of
activities leading to Implementation of an inspection/maintenance
(I/M) program by 1981 (decentralized system) or 1982 (centralized
system).
However, 1n addition to this comnltment to specific measures, the 1979
SIP submittal places, as noted above, primary emphasis on a commitment
to a continuing process for the transportation planning and programming
requirements. This commitment to a process should lead to the expeditious
development, evaluation, selection and Implementation of comprehensive
transportation control strategies. The process should extensively
involve the public as well as state and local elected officials. An
acceptable 1979 SIP should contain these process elements: (1) 1dentif1-

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cation of tasks and responsibilities of all participating agencies;
(2) a schedule for developing and analyzing ambitious, alternative
packages of transportation measures; (3) verification that such an
analysis 1s underway; (4) a schedule for adoption of package(s) of
measures determined to be reasonably available; and (5) a commitment to
justify any decision not to adopt difficult measures.
Transportatlon-Air Quality Planning Guidelines
These guidelines address the transportation-related sections of the
Clean A1r Act and describe an Integrated transportatlon-a1r quality
planning process for developing the transportation system component of
SIPs for areas that are nonattalnment with respect to Ox and/or CO. The
basic policy goal of this process 1s to reduce transportation system
emissions and adverse air quality Impacts while maintaining compati-
bility with other community goals. The guidelines build upon the
existing planning process by providing specific procedures designed to
result 1n a program of transportation strategies that provide for
incremental reductions in transportation system emissions as expeditiously
as practicable.
These guidelines describe an acceptable planning process Intended
to satisfy Clean Air Act requirements for the transportation portions
of an approvable SIP. That process as outlined 1n these guidelines must
result 1n the expeditious development and Implementation of all reason-
ably available measures. Reasonably available measures are determined
through an analytical, participatory and negotiatory process. Early and
frequent Involvement of EPA and DOT 1n the process will best Insure the
development of a SIP that meets the requirements of the Act.
These guidelines apply to all public agencies with responsibilities 1n
planning or implementing the transportation portions of SIPs 1n
nonattalnment areas. The lead planning agency has the primary respon-
sibility for Implementing these guidelines. EPA and DOT Regional
Offices are primarily responsible for monitoring the guideline Imple-
mentation process. The Intermodal Planning Group (IPG) should be the
federal coordinating mechanism. Modifications to these procedures by a
state, regional or local agency should be closely coordinated with the
Regional Offices.
The procedures outlined below are a realistic starting point and
undoubtedly will be improved upon by experience gained through actual
applications. The guidelines should be Implemented through ongoing
planning processes and flexibly applied. However, modification of
guideline elements will require substitution by a comparably effective
approach.

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Chapter III of the Guidelines describes 1n detail the elements of
the planning process needed to accomplish SIP requirements. The scope
and intensity of planning activities undertaken should be commensurate
with the size of the metropolitan area and the complexity of Its
transportation and air quality problems. These elements Include:
° Interagency Coordination: The lead agency 1n
cooperation with other participating agencies should
establish a program for developing the joint responsi-
bilities and working relationships (e.g., through
interagency agreements) of all agencies and organi-
zations involved 1n the process. The objective is
to determine who should do what when.
° Involvement of Elected Officials: The lead agency
should coordinate the joint development of procedures
to Increase the Involvement of elected officials.
The objective is to Increase the probability of
obtaining the commitment of officials to support
and fund needed transportation Improvements.
0 Public Information and Consultation: The lead agency
should also make a parallel effort to Insure adequate
public Information and consultation. The public and
interest groups should specifically participate 1n the
development and analysis of alternative transportation
strategies. The minimum basic elements of a public infor-
mation and consultation process should Include: (1) an
Inventory and assessment of agency programs and
interest groups; (2) the joint development by agencies
and groups of a program for Information and partici-
pation based on the assessment.
° Evaluation of Alternatives: The analysis of alternatives
develops information essential to local decisionmaking
and federal review on the costs and effects of various
actions. Alternatives should be developed and analyzed
in most cases under the auspices of the metropolitan
planning organizations 1n cooperation with federal,
state and local planning, transportation, and
environmental agencies, interest groups, elected
officials, the public and others. For the purpose of
alternatives analysis each of the transportation measures
listed in the Act for which EPA will publish Information
documents is considered reasonably available. In
evaluating the costs and effectiveness of alternatives,

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the full range of potential Impacts should be taken
Into account Including not only air quality but also the
locality's transportation and urban development needs,
economic, social and other environmental Impacts as well
as feasibility of Implementation.
Chapter IV deals with both modifications to ongoing planning activities
required by the Clean A1r Act and documentation of those modifications.
Those activities Include: planning work programs, the transportation
plan Including the transportation systems management and long range
elements, TIP/AE, alternatives analysis, consistency determinations, and
SIP. Chapter V discusses the content and frequency of progress reports
stressing that such reports should be brief and should not substitute
for the more effective mechanism of direct staff contact for demonstrating
and determining progress.

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TRANSPORTATION-AIR QUALITY PLANNING GUIDELINES
I. INTRODUCTION
A.	Purpose
These guidelines Implement Section 108(e) of the Clean A1r Act as amended,
August 1977.' Section 108(e) directs EPA to provide guidelines on the
basic elements of the planning proqess for nonattainment areas.2 This
procedural guidance addresses the transportation-related sections of the
Clean A1r Act. These guidelines describe an Integrated transportation-
air quality planning process (hereafter called the integrated planning
process) for developing the transportation system component of State
Implementation Plans (SIPs) for areas that are designated nonattainment
with respect to photochemical oxidants (Ox) and/or carbon monoxide
(C0).3»4 EPA will subsequently provide more technical Information on
costs, effects and analytical techniques for selecting measures and
developing strategies as required by Section 108(f).
The basic policy goal of the integrated planning process described herein
1s to reduce transportation system emissions and resulting adverse air
quality impacts while maintaining compatibility with other community
goals. The guidelines build upon the existing planning process by
providing specific procedures designed to result 1n a program of trans-
portation strategies that provide for Incremental reductions in 5
transportation system emissions as expeditiously as practicable. The
guidelines stress continuing development and expeditious Implementation
of all reasonably available measures, but particularly those that can be
planned and implemented by 1982 or during the following five years to
1987 as provided for 1n the Clean Air Act. Major long-term trans-
portation Improvements necessary for maintenance of the air quality
health standards beyond 1987 also should be considered within the inte-
grated planning process.
B.	Applicability
These guidelines apply to all public agencies with responsibilities 1n
planning or implementing the transportation portions of SIPs in nonattain-
ment areas. (Section 174 of the Act requires: (1) designation of a
lead planning organization and, (2) state and local elected officials to
determine jointly the coordinated and combined responsibilities of the
state, local governments and regional agencies 1n the SIP revision
process.)
~Footnotes are at the end of the guidelines beginning on page 25.

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The guidelines describe an acceptable approach for accomplishing the
continuing tasks of transportatlon-air quality planning and programming
required by the Clean A1r Act. These procedures are a realistic starting
point. They should be improved upon by experience gained through actual
applications. The guidelines build upon and should be Implemented
through the ongoing comprehensive planning processes. They recognize
that institutional arrangements and planning procedures vary by area
and, therefore, can be flexibly applied. But, while individual guideline
elements need not be viewed as mandatory, the objective of each element
1s a necessary part of an effective process — a process required by
the Act. Therefore, modification of guideline elements will require
substitution of a comparably effective approach.
The lead planning agency has the primary responsibility for implementing
these guidelines. EPA and DOT Regional Offices are primarily responsible
for monitoring the guideline implementation process. The Intermodal
Planning Group (IPG) should be the federal coordinating mechanism.
Modifications to these procedures by a state, regional or local agency
should be closely coordinated with the appropriate EPA and DOT Regional
Offices.
C. Funding
This section describes both authorized (but not yet appropriated) and
currently available funds for conducting the transportation-air quality
planning activities required by the Act. Appendix F describes funding
for plan implementation and related planning.
1.	Authorized Funds
Section 325 of the Act authorizes the appropriation of $75,000,000
(available until expended) to carry out Section 175 beginning in fiscal
year (FY) 1978. Section 175 directs EPA to make grants to meet the
reasonable costs of plan development to any organization of local elected
officials with transportation or air quality maintenance planning
responsibilities recognized by the state under Section 174(a). Grants
would cover 100 percent of any additional costs of developing a SIP
revision for a nonattalnment area for the first two fiscal years following
grant receipt. Grants would supplement any other federal funds available
to such organization for transportation or air quality maintenance
planning. Grants could not be used for construction.
2.	Available Funds
a. Section 175: Prior to the announcement of the President's
urban policy, no Section 175 grant funds were included 1n the FY 1979
federal budget submitted to Congress. Funds to Implement an EPA-DOT
joint transportation^r quality planning process were, however,
included as a contingency item in that budget. These funds were to be

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made available when a DOT-EPA memorandum of understanding was signed.
Release of these funds would require Congressional approval. However, the
urban policy announced on March 27, 1978 included $25 million 1n
grant funds to be requested from Congress for FY 1979 for planning 1n
nonattainment areas. As of late April the following summarizes the
status of the $25 million:
The funds will be requested for Inclusion in EPA's budget under Section
175. No decision has been reached on distribution procedures — I.e.,
whether EPA or DOT grant procedures will be used. The Office of
Management and Budget (0MB) has not announced whether the $25 million
replaces or adds to the contingency fund for FY 1979. Congress may,
of course, appropriate an amount different from that requested by the
Administration. Allocation formulas and procedures are being developed.
b.	Section 105: EPA has earmarked $2 million, available under
Section 105 (Control Agency Grants), for FY 1978 to assist Section 174
agencies in completing the requirements for an approvable 1979 SIP
submittal. Small amounts of funds under current Section 105 grants
might also be available for FY 1979.
c.	DOT Funds: At the direction of the President, 0MB requested
integration of EPA's transportation-related air quality planning require-
ments Into the transportation planning process administered by DOT.
This Integration should produce: (1) joint planning regulations to meet
DOT and EPA objectives, (2) joint DOT-EPA administration of the air
quality aspects of the planning process, and (3) a common, jointly
administered federal funding mechanism for transportation and air
quality planning.
As a follow-up to the 0MB request, the Federal Highway Administration
(FHWA) and Urban Mass Transportation Administration (UMTA) Administrators
sent the following memorandum to their Regional Administrators (Appendix
H contains the entire memorandum):
"Because of the insninence of the January 1, 1979, deadline, we
are directing that the following actions be Initiated promptly by
the regional staffs of UMTA and FHWA:
1.	The EPA should be Invited to participate 1n the Intermodal
Planning Group (IPG) so as to insure coordination of all activities
pertaining to the urban transportation planning process;
2.	The EPA should be consulted to determine which areas are
likely to require [transportation control plans] TCPs and what the
estimated magnitude of TCP effort will be 1n those areas;

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3.	For areas requiring TCPs, funds within already approved
Unified Planning Work Programs (UPWPs) may be reprogramed as
appropriate to support the Identification and analysis of
transportation control measures 1n coordination with the SIP
revision process;
4.	A1r quality planning tasks 1n support of the SIP revision
process should be given a high priority 1n UPWPs now being
developed. Air quality planning 1s a national priority and
must be given appropriate emphasis 1n the conduct of the
transportation planning process;
5.	The transportation Improvement program (TIP)/annual element
(AE) review process should be conducted with a renewed emphasis
on the Inclusion of projects benefiting air quality 1n the TIP/AE;
and
6.	The certification review process should be conducted with a
renewed emphasis on the coordination of air quality planning and
transportation planning as required by the joint regulations."
D. Background
Appendix E traces the history of EPA's transportation control program
previous to the Clean A1r Act Amendments of 1977. The amended Act
addresses problems of the original transportation control planning
process by requiring locally developed plans based on these major
elements: extensive agency Interaction among all governmental levels;
significant involvement of local elected officials; effective public
education and participation; and Integration with ongoing planning
processes, particularly emphasizing the DOT continuing, cooperative and
comprehensive (3C) process (23 CFR 450). The amended Act also provides
sanctions to insure both an effective planning process and the imple-
mentation of an approved or promulgated SIP (Sections 176 and 316).
These guidelines describe the elements of an acceptable planning process
Intended to correct many of the earlier problems and to result 1n
approvable SIPs for nonattainment areas.
The following sections provide additional background on the objectives
and Implementation of these guidelines:
1. Integration With Ongoing Planning Processes. Planning conducted
under these guidelines should be integrated to the fullest extent possible
with existing comprehensive transportation and air quality planning
processes (Including AQMP where applicable), and should Include the use
of common data bases, modeling applications, and coordinated planning
activities among staffs of the participating agencies. This guidance
builds upon and selectively expands the DOT joint planning regulations
(23 CFR 450), a knowledge of which 1s essential to users of the guide-
lines (Appendix K).

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Integrated DOT and EPA planning should result 1n a more efficient process
and 1n products that better meet the objectives of both agencies. Related
activities required by both agencies should be merged and duplication
eliminated. Establishing separate and costly planning processes should
be avoided.
2.	A Continuing Process. Preparing the transportation portion of
the SIP is not merely the one time development of short range tactics
to improve air quality, but rather the entire process of regularly
taking air quality needs Into account 1n all transportation decisions.
Urban areas with actual or potential violations of the national air
quality standards for transportation-related pollutants should re-
evaluate their transportation plans and programs on a continuing basis.
If necessary, these areas should revise the transportation plan, Including
the transportation systems management (TSM) element, and the Transportation
Improvement Program (TIP) to achieve continual incremental air quality
Improvements and prevent future air quality problems. Areas which violate
the health standards should demonstrate continuing, expeditious progress
In planning, programing and implementing measures that improve air
quality. These areas may have to forego or postpone projects that would
cause adverse air quality Impacts and reprloritize other projects to
achieve expeditious Improvements 1n air quality.
3.	Designation and Role of the Lead Agency or HPO. Where feasible
the lead organization designated to conduct and/or coordinate the planning
and implementation process in nonattainment areas (and thus primarily
responsible for applying these guidelines) should be either the metro-
politan planning organization (MPO) designated to conduct transportation
planning under Section 134 of title 23, USC, or the organization responsi-
ble for the air quality maintenance planning process. Where such agencies
are not so designated, their relationship with the designated lead
agency and their role in such planning should be clearly identified. Also,
the relationships among the lead organization, comprehensive planning
agency and the A-95 clearinghouse should be identified where those
agencies are not the same.
Both EPA and DOT view the role of the MPO as providing a forum for coopera-
tive decisionmaking by principal elected officials of general purpose
local government. The designation of the MPO as lead agency or the
process established by these guidelines should not preclude other state,
regional or local agencies from acting through tHTs forum. In fact,
Section 174 of the Clean A1r Act envisions a SIP revision process
Involving a combination of state, regional and local agencies. Manage-
ment of an efficient, effective process may require the MPO or lead
agency to allocate responsibilities to other agencies with better expertise
for specific tasks. The lead agency should regard the Integration of
the mobile and stationary components of the SIP as a joint task of great
significance demanding the close cooperation of all participating agencies.
Clearly, development of an approvable 1979 SIP requires a commitment on
the part of all appropriate agencies with planning and/or Implementation
authority.

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II. SIP POLICY
These transportation-air quality planning guidelines are designed
to describe an acceptable planning process Intended to satisfy Clean
A1r Act requirements for the transportation portions of an approvable
SIP. Specifically, in regard to the transportation-related requirements
of the 1979 SIP revision, primary emphasis 1s placed on a commitment to
a continuing process. That process as outlined in these guidelines must
result 1n the continuing development and expeditious implementation of
all reasonably available measures necessary, together with stationary
source controls, to attain the standards. Reasonably available measures
are determined through an analytical, participatory and negotlatory
process. Early and frequent Involvement of EPA and DOT In the process
will best Insure the development of a SIP that meets the requirements of
the Act.
Appendix B contains for reference purposes a major policy memorandum,
signed by the EPA Administrator and dated February 24, 1978, "Criteria
for Approval of 1979 SIP revisions." Chapter II draws upon key sections
of this policy memorandum applicable to the transportation portion of
SIPs.
A. Overall Summary of SIP Policy
The Clean Air Act requires the demonstration of attainment of the primary
air quality standards as expeditiously as practicable, but not later than
December 31, 1982. However, for CO and Ox, the Act allows up to a five-
year extension 1f a state can demonstrate that attainment 1s not possible
by 1982 despite the Implementation of all reasonable stationary source
and transportation control measures. In such cases the plan revisions
must still demonstrate attainment as expeditiously as practicable but
not later than December 31, 1987. An extension is not automatic; a
demonstration of need must be made and the states must fulfill the other
statutory requirements. EPA has established reasonable and achievable
SIP requirements and will take a firm posture on the Imposition of
sanctions where these requirements are not achieved.
Since reliance on stationary controls and federal new car standards alone
will not enable most areas with Ox and CO problems to meet standards by
1982, additional specific measures must be Included in the 1979 SIP to
reduce transportation system emissions. The 1979 SIP requirements
include a commitment to: (1) accelerate implementation of specific
strategies (e.g., transportation Improvements contained in the current
or recent annual element (AE)); (2) the Incremental phase-In of additional
strategies (e.g., other measures contained 1n the transportation improve-
ment program (TIP1 that appear reasonable and effective on the basis of
preliminary analysis); and (3) a schedule of activities leading to
Implementation of an Inspection/maintenance (I/M) program by 1981
(decentralized system) or 1982 (centralized system).

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However, as noted above primary emphasis 1s placed on a commitment to a
continuing process for the transportation planning and programming
requirements in the 1979 SIP submittal. This commitment to a process
should lead to the expeditious development, evaluation, selection and
implementation of comprehensive transportation control strategies. The
process should extensively Involve the public as well as state and local
elected officials. In addition to the commitment to specific measures
previously outlined, an acceptable 1979 SIP must contain these process
elements: (1) identification of tasks and responsibilities of all
participating agencies; (2) a schedule for developing and analyzing
ambitious, alternative packages of transportation measures; (3) verifi-
cation that such an analysis 1s underway; (4) a schedule for adoption
of package(s) of measures determined to be reasonably available; and (5)
a corniritment to justify any decision not to adopt difficult measures.
DOT, Housing and Urban Development (HUD) and EPA are seeking to Integrate
the transportation-air quality planning and Implementation required by
the Clean Air Act Into existing planning and programming procedures.
Air quality-related transportation planning activities should be Included
1n the UPWP required by DOT. Adopted a1r quality-related transportation
measures should be Included 1n the TIP/AE required by DOT. The HUD-EPA
Agreement on coordinating air quality planning and HUD's Comprehensive
Planning Assistance (701; Program (Appendix I) 1s also important. Inte-
gration of air, transportation, and comprehensive planning which Incorporates
growth management concerns should Improve the effectiveness of air
quality planning and reduce the need for future enforcement measures.
B. Specific Selected SIP Requirements
The following selected requirements draw upon the "Criteria for Approval
of the 1979 SIP Revision" memorandum, apply primarily to the trans-
portation portion of the SIP and expand summary information presented in
Section A. (Again, Appendix B contains the entire memorandum.) Table 1
provides an abbreviated checklist of the major transportation-related
requirements of an acceptable 1979 SIP.
1. Transportation-Related Requirements of all 1979 SIP Revisions
a. Adoption 1n legally enforceable form® of all measures
necessary to attain standards by the prescribed date. Where adoption
of all such measures by 1979 is not possible (e.g., certain trans-
portation control measures) a staged schedule for the expeditious
development, adoption, submittal, and Implementation of these measures
should be Included. Each schedule should provide for Implementation of
all reasonably available control measures as expeditiously as practicable.
Prior to attainment, these measures must be implemented on a schedule
that demonstrates annual incremental emission reductions. (See below 1n
subsection lc on reasonable further progress.) As part of the SIP each

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Table 1
Checklist of Transportation-Related Provisions1 of the 1979 SIP
A.	Problem Definition
1.	Definition of nonattalnment area and geographic area covered
by transportation control measures;
2.	Accurate* comprehensive and current emissions Inventory;
3.	Estimation of emission reductions needed to demonstrate
standard attainment by 1982 and 1987 (Including emission growth
projections); and
4.	Determination of whether federal new car standards and proposed
transportation and stationary source controls demonstrate
attainment by 1982. Demonstration of need for attainment dead-
line extension to 1987;
B.	Process
1.	Designation and certification of a lead agency for nonattalnment
areas;
2.	Identification of agency tasks and responsibilities;
3.	Schedule for comprehensive alternatives analysis and demonstration
that analysis 1s underway;
4.	Schedule for adoption of reasonably available measures;
5.	Commitment to justify decision not to adopt difficult, but
reasonably available measures (see page 7 in the guidelines
for additional Information on B. 2-5);
6.	Process for public, interest group, and elected official
consultation and Involvement in: defining transportation-
air quality issues, establishing the planning process,
development and analysis of alternatives (see pages 14-15);
7.	Identification of estimated financial and manpower resources
necessary to carry out the process described by these guide-
lines. A commitment to the first year of this process
should be demonstrated in the UPWP;

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8.	Evidence that the SIP was adopted by the state after reasonable
notice and public hearing;
9.	Provisions for progress reporting throughout the planning and
implementation period (pages 22-23);
Additional Transportation-Related Provisions for Areas
Unable to Attain by 1982
10.	Schedule of activities leading to Implementation of I/M
(see pages 6, 10); and
11.	A commitment to use (Insofar as Is necessary) available grants
and funds to establish, expand or Improve public transportation
measures to meet basic transportation needs as expeditiously
as practicable (page 10). (As Indicated 1n the Preface, further
guidance will be provided.)
C. Strategy Development/Imp!ementatlon
1.	UPWP air quality-related transportation planning tasks being
performed by each agency during FY 792 (pages 19-20);
2.	Emission reduction estimates for adopted measures and/or packages
of measures. Rough estimates of annual emission reductions
through 1987 for packages of measures currently being
developed and analyzed;
3.	Preliminary Identification of analytical methodologies for
determining air quality, travel, economic, energy,"social
etc. effects of plan provisions. Summary of any public coiranent
on such methodologies (pages 18-19); and
4.	Commitment to: (1) accelerate Implementation of transportation
Improvements 1n current or recent AE, (2) Incremental phase-In
of additional reasonable measures (page 6).
1	The required provisions can be loosely placed 1n three categories:
Problem Definition, Process, Strategy Development/Imp1ementatlon.
2	The SIP should summarize planning activities by major categories
(e.g., long term public transit Improvements, TSM elements). However,
as noted in the Preface, the exact form of SIP provisions should be
worked out by the lead agency and DOT and EPA Regional Offices.

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schedule will represent a commitment by the state to provide for attain-
ment by the prescribed date. The schedule of key milestones should be
viewed as a series of sequential, step by step conmltments. For example,
the Initial commitment to be made 1n the January 1979 SIP 1s to the
thorough analysis of alternatives. Subsequent commitments should advance
measures found to be reasonable and effective through programming and
Implementation steps. Adequate substitutions must be made for measures
determined to be Ineffective or Impracticable.
b.	Emission reduction estimates for adopted or scheduled
measures or for packages of measures where estimates for Individual
measures are Impractical.
c.	Provision for reasonable further progress toward attainment
of the primary and secondary standards prior to the prescribed attain-
ment date. "Reasonable further progress" means annual Incremental
reductions 1n total emissions (from new as well as existing sources) to
provide for attainment by the prescribed date. The SIP should be
designed to provide for substantial reductions in the early years with
regular reduction thereafter, although the most substantial reductions
from transportation sources may occur 1n later years due to longer
planning and Implementation lead times.
Demonstration of reasonable further progress requires 1n most areas
designated nonattainment for Ox or CO, a continuing phased implementation
of transportation control measures. Reliance only on the Federal Motor
Vehicle Control Program as a demonstration of reasonable further progress
1s not acceptable 1n areas unable to attain the standards by 1982.
d.	Identification and quantification of: (1) growth rates for
stationary and mobile sources and (2) a procedure to monitor emission
growth from stationary and transportation sources to assure compliance
with the amounts specified in the SIP. The growth rate Identified in
the SIP must be consistent with the growth rates used (or implied by)
the other planning activities 1n the area (e.g., FWPCA Section 208 [201],
HUD Section 701, FHWA Section 134).
e.	Provision for annual reporting on: (1) progress toward meeting
the schedules noted 1n (a), and (2) growth 1n emissions from mobile
sources, minor new stationary sources, major new or modified stationary
sources, and reduction 1n emissions from existing sources to provide for
reasonable further progress as noted in (c) above. This should include
an updated emission inventory.
f.	Identification of estimated financial and manpower resources
necessary to carry out the process described by these guidelines. A
commitment to the first year of this process should be demonstrated 1n
the UPWP.

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g.	Evidence of public, local government and state legislative
Involvement and consultation. The SIP should also Identify and analyze
the air quality, health, welfare, economic, energy, and social effects
of the plan revisions considered and provide a summary of public coirenent
on such analyses. The 1979 SIP may contain a preliminary evaluation
with a commitment and schedule for further, more Intensive and compre-
hensive analysis.
h.	Evidence that the SIP was adopted by the state after reasonable
notice and public hearing.
2.	Additional Transportation-Related Requirements for CO and Ox
Revisions Which Provide for Attainment of the Primary Standards
Later Than l98g	 		
For those SIP revisions which demonstrate that attainment of the primary
standards for CO and/or Ox is not possible prior to December 31, 1982
despite the Implementation of all reasonable emission control measures, the
following must be included 1n the January 1, 1979 submission 1n addition
to the general requirements listed above in subsection 1:
a.	An Inspection/maintenance program or a schedule endorsed and
committed to by the Governor for the expeditious development, adoption,
and Implementation of such a program.'
b.	A conrnritment by responsible government officials to:
(1)	establish, expand, or improve public transportation measures to
meet basic transportation needs as expeditiously as practicable and
(2)	use (Insofar as necessary) available grants and funds, consistent
with the terms of the legislation providing such grants and funds, to
establish, expand, or improve public transportation measures to meet
basic transportation needs. (As noted 1n the Preface, additional
substantive and procedural guidance on this requirement will soon be
Issued.)
3.	Pollutant Specific Requirements (CO and Ox)
The 1979 Ox SIP submissions must represent a comprehensive strategy
for each nonattainment area providing for sufficient control of volatile
organic compounds from stationary and mobile sources necessary to attain
the oxidant standard. SIP submissions that address only selected portions
of nonattainment areas are not adequate. For oxidant plan development,
major urban areas are those with an urbanized population of 200,000 or
greater (U.S. Bureau of Census, 1970). Although specific boundaries may
be defined somewhat flexibly, the boundaries must be large enough to
cover the entire urbanized9^area and adjacent fringe areas of development.
SIP revisions must provide for expeditious implementation of reasonably
available control measures. At a minimum the following transportation
measures for which EPA will publish information documents are considered,
for the purpose of analysis, to be reasonably available:

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1.	To be published by February 1978
a.	Inspection/maintenance
b.	vapor recovery
c.	improved public transit
d.	exclusive bus and carpool lanes
e.	area wide carpool programs
2.	To be published by August 1978
a.	private car restrictions
b.	long range transit Improvements
c.	on street parking controls
d.	park and ride and fringe parking lots
e.	pedestrian malls
f.	employer programs to encourage car and
vanpoollng, mass transit, bicycling
and walking
g.	bicycle lanes and storage facilities
h.	staggered work hours (flexi-time)
1. road pricing to discourage single occupancy
auto trips
j. controls on extended vehicle idling
k. traffic flow Improvements
1. alternative fuels or engines and other
fleet vehicle controls
m. other than light duty vehicle retrofit
n. extreme cold start emission reduction programs
The above measures (either Individually or in packages) should be analyzed
promptly and thoroughly. This alternatives analysis for each urban area
will produce the essential information needed to determine precisely
what comprehensive strategies are reasonably available. The selected
strategies should then be scheduled for: (1) more detailed analysis, if
necessary, (2) submittal to, and adoption by, policy boards, and
(3) Implementation. Because all analyses of every measure or package
cannot be completed by January 1979 for inclusion in the SIP, where
necessary a submitted schedule may provide for subsequent completion.
(Where subsequent analyses demonstrate that certain measures may be
unnecessary, Ineffective or infeasible, a decision not to Implement them
may be justifiable. Such decisions will, however, be reviewed carefully
by EPA and DOT Regional Offices.)
As described previously, annual incremental reductions 1n total emissions
must occur to demonstrate reasonable further progress prior to attainment
of the standards. Therefore, Implementation activities should not be
delayed until completion of the comprehensive analyses of alternative

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transportation Improvement packages. For example, feasibility studies
and demonstration projects are often essential steps 1n the planning and
implementation of specific measures (e.g., auto-restricted zones,
specialized transit service). Where demonstration projects are appro-
priate, they should be scheduled for implementation prior to the end of
1980.
Planning and implementation of certain air quality-related transportation
measures and strategies may be a complicated and lengthy process extending
beyond 1982 1n areas with severe CO or Ox problems. Implementation of
even very extensive transportation measures, however, must be initiated
before December 31, 1982.
Where revised SIPs justify an extension of the attainment date, the adopted
transportation portion must provide:
1.	Specific procedures and criteria developed by the agencies
designated according to Section 174 for determining whether the
transportation planning process conforms to the SIP.
2.	A schedule for the expeditious implementation of already planned,
reasonably available transportation measures including transportation
provisions In existing SIPs and other transportation measures with
demonstrable air quality benefits developed as part of the transporta-
tion process administered by DOT.
3.	A program for evaluating alternative packages of transportation
options covering at least those measures for which EPA will develop
Information documents. The analyses must Identify a package of measures
which will attain the emission reduction target ascribed to trans-
portation sources 1n the SIP. The comprehensive analysis of alternative
must be completed by July 1980 unless the lead agency can demonstrate
a need for additional time.
4.	A program for evaluating long range (post-1982) transportation and
growth policies. Alternative growth policies and/or development patterns
must be examined to determine the potential for modifying total travel
demand.
5.	A schedule for adoption of needed transportation control measures
as expeditiously as practicable. Adopted measures must be expeditiously
implemented on a continuous schedule demonstrating Incremental emission
reductions from 1979 to the attainment date. The reasonableness of
a schedule will be determined by the nature of the existing or
planned transportation system and the complexity of implementing an
individual measure or package of measures.

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III. PROCESS
A.	Introduction
The Integrated planning process described 1n Chapter III should accomplish
the policy goals Identified In the Introduction and satisfy the SIP
requirements outlined in Chapter II. Again, the DOT joint planning
regulations should be used 1n conjunction with these guidelines as the
basis for, all transportation-a1r quality activities carried out under
the Clean A1r Act. The scope and intensity of planning activities
discussed 1n this chapter should be coirenensurate with the size of the
metropolitan area and the complexity of Its transportation and air
quality problems. Special emphasis should be placed on the following
elements of the existing planning process: public participation,
involvement of elected officials, alternatives development and evalu-
ation, and plan implementation. Numerous provisions from DOT and EPA
legislation further define requirements of the transportation-air quality
planning process that must be met.10
B.	Interagency Coordination
The designated lead agency should first establish a program, 1n cooperation
with other agencies Identified under Section 174, for developing the
joint responsibilities and working relationships of all agencies and
organizations involved 1n the transportatlon-air quality planning and
Implementation process. The program should Include:
1.	Documenting roles and responsibilities of all agencies having
transportation and/or air quality planning and implementation functions
for the area.
2.	Jointly defining necessary formal and Informal working relationships
among programs and agencies to achieve an Integrated comprehensive
planning process.
3.	Jointly developing mechanisms to maintain or establish (where
necessary) these working relationships, including: assessing the
adequacy of Informal coordination among staffs, setting up interagency
advisory groups, and developing more formal Interagency agreements or
memoranda of understanding as needed. These mechanisms should address
the following tasks as well as others the agencies find necessary:
(a) Modifying existing institutional and technical
transportation and air quality planning processes to achieve
integration at and between local and regional levels.

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(b)	Applying criteria and procedures for evaluation and
revision of projects, plans and programs to ensure their
conformity with the SIP. (Criteria and procedures are being
developed and will be provided subsequently.)
(c)	Incorporating into the SIP major air quaility-related
elements of the UPWP and specific transportation control measures
from the transportation plan, TSME, TIP and AE.
(d)	Implementing, operating, and enforcing transportation-
related elements of the SIP.
(e)	Monitoring air quality and transportation trend
Indicators.
C.	Involvement of Elected Officials
The lead agency should Insure joint development of procedures, where
necessary, to increase Involvement of appropriate elected officials in
transportation^ r quality decisionmaking including:
1.	Providing preliminary Information to such officials regarding
both the range of individual measures and packages of measures being
considered that could require an Implementation commitment by such
officials.
2.	Providing increasingly more detailed information to officials as
specific transportation strategies are developed, evaluated and sub-
jected to Interagency and public consultation.
3.	Obtaining the commitment from officials to support and fund the
adoption and implementation of reasonably available transportation
projects and programs within their areas'of jurisdiction.
4.	Advising officials of proposed modifications to air quality-
related transportation projects and programs within their jurisdictional
areas.
D.	Public Information and Consultation^
A parallel procedure should be developed for adequate public information
and consultation on transportation, air quality and public health Issues
as well as the Integrated planning process. Interest groups should
participate in the development and analysis of alternative transportation
strategies. Existing procedures for public participation should be used
whenever such procedures achieve the objectives of this section. As
with other SIP revision tasks the exact details of a public information

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and consultation program must be worked out under the auspices of the
lead agency by participating state, regional and local agencies 1n
consultation with appropriate citizen groups. The basic elements of any
program should be conducted by the agencies or interest groups best
equipped to carry out the tasks effectively.
An effective public Information and consultation process should include
the following elements:
1.	Inventory: An Inventory of agency public Information programs
and Interest groups Is essential for a well managed, effective and
efficient public consultation process. This inventory should cover:
(1) agency Information and consultation programs aimed at the public
and/or elected officials, Identifying duplicative tasks and those
receiving Inadequate attention and (2) special interest groups
(e.g., environmental advocacy groups, Chambers of Commerce) and major
local citizen's associations.
2.	Assessment of Existing Programs: Periodically the programs
and the working relationships of the agencies and groups Inventoried
should be jointly assessed — for example by the lead agency and an ad
hoc committee of public Interest groups such as a citizen advisory
committee or public counsel mechanism. Public information and consul-
tation programs should be evaluated for: (1) reaching other agencies and
interest groups; (2) informing and educating the public and elected
officials about air quality, transportation, public health, and the
Integrated planning process; (3) responding to and acting on Issues
raised by the public; and (4) effectively involving the public in the
transportation-air quality planning process.
3.	Program Development: The public consultation program should
correct deficiencies found in the assessment and cover two areas: information
and participation.
Information on air quality, transportation and public health should be
scaled and targeted toward appropriate agencies and Interest groups. It
should cover the magnitude of the air quality problem, inventory and
assessment of programs and groups, integrated planning process concepts,
procedural steps of that process, the alternative transportation Improve-
ments being developed and evaluated including their Incidence of the
costs and benefits, and so forth.
Second, mechanisms should be developed and implemented, where necessary,
to allow the public and elected officials to participate in all phases
of the integrated planning process. For example, where such mechanisms
do not exist or are determined ineffective, the process could be revised
to Include: (1) a Citizen Advisory Committee reflecting a representative

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cross section of Interest groups, (2) a Technical Advisory Committee
that includes representatives of the Citizen Advisory Committee and
staff from state and local environmental and transportation agencies,
and (3) procedures to allow timely and effective exchanges between these
two committees, agency policy committees, and elected officials.
E. Evaluation of Alternative Strategies
Alternatives analysis systematically develops and evaluates a wide
range of transportation actions, Individually and 1n combination.
Alternatives analysis develops Information on costs and effects of
various actions for local decisionmaking and federal review. The periodic
reassessment of transportation plans and programs provides both the
occasion and opportunity for alternatives analysis. Appendix G summarizes
pertinent DOT and EPA legislation requiring alternatives analysis, along
with selected information supplementing the following subsections.
1.	Assignment of Responsibility
MPOs should In most cases take lead responsibility for overseeing the
implementation of these guidelines on evaluating alternatives because
of their central role 1n the urban transportation planning process
administered by DOT. These alternatives analysis guidelines should of
course be applied by the MPO 1n cooperation with federal, state, and
local planning, transportation, and environmental agencies, public
Interest groups, elected officials, and others. Detailed Institutional
arrangements and assignments of responsibility should be tailored to the
particular situation 1n each metropolitan nonattalnment area.
2.	Agency, Elected Official and Public Consultation
Other agencies, local elected officials and the public should participate
1n developing transportation-air quality strategies. Information should
be made available on the alternatives beln'g considered and their likely
effects, both beneficial and adverse. Interested and affected partici-
pants should be given the opportunity to express their views early
enough 1n — and throughout — the study process to influence both the
course of studies and Implementation decisions.
3.	Generation of Alternatives
Areas that will not attain the standards by 1982 and that currently
have an EPA-approved or promulgated transportation control plan (TCP)
as part of their SIP should first evaluate measures in the TCP. Imple-
mented TCP measures should be noted, while those not yet implemented

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should be reviewed and their current status Indicated (e.g., study
underway, project programmed for implementation, stalled for lack of
funds, not considered, studied and rejected). Measures determined
Ineffective or infeasible or whose Impacts are highly deleterious may be
dropped from the TCP 1f the action 1s supported by properly documented
analysis. Any suspension or elimination of an existing SIP provision
must be Included 1n the January 1979 submittal.
In areas where new transportation control measures are needed, trans-
portation agencies should Identify those that appear potentially capable
of contributing to air quality Improvements consistent with other community
goals. The measures should span a broad range of inter-related air
quality and community effects so that further analysis can reveal trade-
offs and possibilities for packaging the measures into strategies.
Measures or groups of measures Identified at this stage should be ones
that appear to be worthy of further analysis and should not exclude
ambitious measures that could be controversial. (EPA will subsequently
be providing guidance on packaging transportation measures as part of
the Information documents required by Section 108(f).) To Insure that
ambitious packages of measures are analyzed and considered for implementa-
tion, one of the alternative packages should Include a mix of transportation
measures that would either:
a.	Achieve the emission reduction target assigned to transportation
sources (according to Section 174 procedures and after consultation
with EPA) needed to attain ambient air quality standards for CO and Ox
by 1987. This target should reflect expected pollutant decreases from
the federal motor vehicle control program, non-transportation source
controls, and vehicle inspection/maintenance program. Or,
b.	Reduce transportation CO and HC emissions by a percentage
jointly determined (according to Section 174 procedures and after con-
sultation with EPA) to represent the most expeditious progress toward
attainment that can ambitiously be accomplished by 1987 (e.g., one such
target could be a 15-20 percent reduction).12 This emission reduction is
in addition to reductions achieved through the federal motor vehicle
control program and an inspection/maintenance program.
4. Analysis of Alternatives
a. Analysis Considerations: Consistent with DOT's joint planning
regulations, the detail and resources used to develop and evaluate
transportation alternatives should be commensurate with the magnitude
and geographic extent of the air quality problems facing each nonattain-
ment area. Areas with severe and persistent air quality problems should
make a major effort toward finding solutions, while areas with less
extensive or shorter term problems may find a lower level of effort
sufficient. Reg1onw1de air quality problems (e.g., high Ox levels) will

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require Investigation of regionwlde strategies; more localized air
quality problems (e.g., high CO concentrations) may also require region-
wide solutions but 1n some cases may only require sub-area studies and
corrective strategies.
The level of detail of analysis also should reflect the planning horizon
of the actions under consideration. Approximate, or "sketch planning,"
analysis Is appropriate for the long range plan because long range
projections are sufficiently uncertain that additional detail may provide
only marginally better Information. More detailed analysis should be
carried out on the projects and packages of projects contained in the
TIP. The planning analyses should primarily focus on the Congres-
sionally mandated deadlines of 1982 and 1987.
Simplified analysis techniques should be used Initially to assess the
impacts of alternative measures and strategies, followed by more detailed
analysis on those strategies that survive this Initial screening. The
information produced — Including the Incidence of social, economic and
environmental Impacts ~ should clarify the critical Issues of choice
available to Involved communities and should point out the trade-offs
among alternatives.
Key assumptions made 1n the analysis (e.g., choice and sensitivity of
demand models, trip assignment techniques, network speeds, meteorology,
emission factors) should be fully documented. In some cases, real-life
variations from such assumptions may alter significantly the course of
Implementation or may invalidate projections upon which plans are based.
Under changed conditions, the desirability and feasibility of certain
measures may change significantly. For this reason, alternatives analysis
should explore the sensitivity of key Impact predictions and project
choices to key assumptions and parameters. For example, where alternative
population and land use projections result 1n significantly different
estimates of travel demand, 1t 1s Important to examine how alternative
demand estimates affect the proposed system performance and point to
alternative mixes of transportation measures. Where sensitivity analyses
Identify significant differences 1n air quality under varying assumed
conditions, procedures for monitoring those conditions and updating
plans and programs 1n accordance with observed conditions should be
developed.
b. Criteria for Evaluation of Alternatives: In evaluating the
costs and effectiveness of alternatives, all potential Impacts should be
taken into account. This Includes not only air quality but also Imple-
mentation feasibility as well as transportation and urban development
needs, economic, social and other environmental Impacts. Measures that
create serious hardships obviously should not be selected simply because
they appear to improve air quality. For each alternative package of

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measures or strategy the following factors should be considered at least
qualitatively, but also quantitatively where data and methodologies are
available.
(1)	Air quality: regional and local impacts by pollutant;
other environmental Impacts;
(2)	Energy consumption: fuel consumed by each alternative;
(3)	Effects on the community: employment and employment
patterns; retail sales and other business activity Indicators;
effects on the tax base; changes 1n land use patterns; Impacts on
regional development; urban development plans; property acquisition
requirements; neighborhood disruption and displacement; and
compatibility with community goals;
(4)	Financial analysis: funding sources and uses (e.g., matching
requirements, opportunities foregone);
(5)	Economic analysis: present and future capital and operating
costs;
(6)	Economic Impacts: present and future Indirect costs and
benefits, Including Incidence of costs and benefits by:
° public and private sector
° income group
° geographic area
° social group;
(7)	Travel Impacts: changes 1n auto usage, vehicle-
miles of travel, modal split, travel time, level of service and
accessibility, convenience, volume of travellers by: mode,
origin-destination, time-of-day, and trip purpose;
(8)	Political feasibility: required public and elected
official support, new legislation, promotional efforts, success-
ful applications elsewhere, potential controversy;
(9)	Institutional feasibility: assessment of need for new
agency authority, special Interagency agreements, extensive
cooperation among agencies, dependence on other actions
for successful Implementation; and
(10) Other factors considered Important by the local community.

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IV. MODIFICATION AND DOCUMENTATION OF EXISTING PLANNING ACTIVITIES
A.	Introduction
This chapter describes: (1) modifications to ongoing transportation
planning activities required by the Clean Air Act and (2) documentation
of those modifications. The modifications and documentation require
minimal alteration of existing procedures and reporting requirements.
B.	Planning Work Programs
1.	General
Proposed transportation planning work required under the Clean Air Act
should be Included as part of the UPWP currently prepared by MPOs 1n
response to DOT requirements (23 CFR S 450, Subpart A). This should
be accomplished by all nonattalnment areas that establish planning
procedures 1n accordance with Section 174 of the Act, regardless of
whether the MPO 1s the certified lead agency or whether any Section 175
fundtng 1s provided.
2.	Prospectus
The UPWP prospectus should be modified to: (a) surmiarize the Integrated
planning process Including discussion of the important air quality-
related transportation Issues facing the area; and (b) describe the
Interrelationships of the functional responsibilities of participating
planning and operating agencies, including air quality agencies.
3.	Unified Planning Work Program
The UPWP should describe all air quality-related transportation planning
activities anticipated within the area regardless of funding source. Work
funded under Section 175 of the Clean Air Act should be described in the
UPWP format prescribed by the Intermodal Planning Group (IPG) or in a
modified version agreed upon by EPA and the IPG.
C.	Transportation Plan
1. Development of the short-range or transportation system
management element (TSME) of the transportation plan should
consider measures which will quickly reduce transportation
system emissions Including traffic engineering, public trans-
portation, regulatory, pricing, management, operational
and other TSM improvements.

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2.	Development of the long-range element of the transportation
plan should consider new transportation policies and facilities
and/or major changes In existing facilities with long-range
potential for reducing transportation-related emissions and
contributing to attainment and maintenance of the ambient
health standards.
3.	All short-range (TSM) and long-range measures 1n Section
108(f) of the Act are, for the purpose of analysis, reasonably
available. They should be specifically considered 1n the analysis
and development of alternative TSMEs and long-range elements.
D.	Transportation Improvement Program (TIP)
The TIP, Including the annual element, should Identify from the TSM
and long-range elements of the transportation plan improvements that
produce incremental emission reductions and air quality Improvements.
These Improvements should expeditiously advance toward Implementation
during the program period consistent with SIP planning and programming
schedules. Priorities assigned to transportation Inprovements should be
consistent with the requirements of Section 176(d) of the Clean A1r Act
(i.e., federal agencies conducting or supporting programs with air
quality-related transportation consequences shall give priority, consistent
with other statutory requirements, to the Implementation of measures in
approved or promulgated plans under Section 110 of the Clean Air Act).
E.	Documentation of Alternatives Analysis
The MPO or lead planning agency should coordinate the development of a
working reference document describing the methods and results of
alternatives analysis. This work document should use and supplement,
as necessary, technical reports required by the DOT joint regulations.
While the entire alternatives analysis document will not normally be
submitted with EPA's periodic progress reports (Chapter V), 1t should be
kept updated and available for review at all times by other agencies and
the public. This document plays a key role 1n the integrated planning
process as the basic resource for the joint determination by parti-
cipants that all reasonable measures are being Implemented as expeditiously
as practicable.
The document should: (1) describe the alternative measures and packages
of measures selected for preliminary analysis; (2) provide reasons for
rejection or selection of alternatives for more detailed analysis. (The
Initial list of alternative measures shall Include all those listed 1n
Section 108(f) of the Clean A1r Act.); (3) describe the effects considered
1n both the preliminary and more detailed alternatives analysis (e.g.,

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air quality, travel, economic effects — see Section III E.4.b) and the
methodology used 1n estimating these effects; (4) summarize results of
the alternatives analysis to date; and (5) explain why alternatives were
finally rejected or selected for Implementation.
F.	Consistency Determination Documentation
Procedures established to satisfy FHWA requirements for determining
consistency of areawlde transportation plans with SIPs (required under
23 USC 109(j)) should be used to respond to the transportation-related
requirements of the Clean A1r Act. Documentation of annual consistency
determinations should continue to be provided to EPA according to
existing procedures. Thls^ documentation can be used to: (1) demonstrate
that all reasonable measures are being Implemented as expeditiously as
practicable (in accordance with Section 172(b)(2)), (2) demonstrate
reasonable further progress (5 172(b)(3)), and (3) assure conformity
(S 176(c)). EPA will consider the consistency determination along with
the nonattalnment plan provisions submitted 1n response to Section
172(b) in assessing SIP progress.
G.	SIP
The required 1979, 1982 and subsequent SIP revisions should include
major air quality-related work elements of the UPWP and specific trans-
portation control measures from the transportation plan, TSME, TIP and
AE. Chapter II above outlines the transportation-related contents of an
approvable 1979 SIP. Appendix B contains the complete, more detailed
description of the elements of an approvable 1979 SIP.
V. PROGRESS REPORTS
A. Introduction
EPA will require periodic reports to: (1) monitor and assess progress 1n
developing and implementing the transportation-related provisions of the
Clean Air Act; (2) develop uniform review criteria for assessing SIP
progress; and (3) develop Information for decisions on: (a) planning
funds allocation, (b) conformity and consistency determinations, and
(c) Imposition of Section 176 sanctions. The reporting requirements
described below are designed to minimize time spent on documenting and
reviewing routine activities, allowing staffs to concentrate on Identi-
fying and resolving significant problems. These reports should not
substitute for the more effective mechanism of direct staff contact for
demonstrating and determining progress.

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Although progress reports will normally be expected every six months,
alternative arrangements are possible by agreement between the lead
agency and the EPA Regional Office. Existing reports and reporting
procedures should be used to comply with Clean A1r Act requirements;
I.e., wherever a progress report of similar format and content is
currently prepared for another agency and/or program, such a report may
be modified as necessary to satisfy EPA requirements.
B. Content
The progress report should briefly summarize the status of the air
quality-related elements of the: (1) UPWP, (2) transportation plan
(Including TSME), (3) TIP, and (4) annual elements of the TIP for both
the current and preceeding year.13 Specific elements of the progress
reports for each nonattainment area should be worked out Individually
with the EPA Regional Office. An acceptable report should include, but
need not be limited to, the following:
1. UPWP
The status of major air quality-related work elements (including but not
limited to alternatives analysis, procedures for interagency coordination,
Involvement of elected officials, public information and consultation),
covering: (a) brief summary (two or three sentences) and percentage of
work accomplished to date; (b) description of outstanding issues and
problems, 1f any, that may alter scope or completion times; and (c)
program contact person responsible for each work element.
2.	Transportation Plan
The status of each major air quality-related portion of the transportation
plan.
3.	TIP
The status of each major air quality-related transportation improvement
listed in the annual elements of both the current TIP and that of the
previous year, including but not necessarily limited to EIS status,
funding commitment, and inplementatlon status.
C. Annual Report
The Annual Report required by the "Criteria for Approval of 1979 SIP
Revisions" (p. 14, Appendix B) shall describe: (1) progress toward meeting
SIP schedules for development and implementation of transportation control
measures, (2) contribution of transportation source controls to the
Incremental emission reductions required for standard attainment,
(3) growth of mobile sources, and (4) an updated mobile source emission
inventory. The Annual Report should be based upon and may Incorporate
appropriate parts of the progress reports described above.

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Footnotes
1	42 USC 7401 etseq. hereafter referred to as "The Act" or "The Clean
Air Act."
2	Section 108(e) requires publication of guidelines for the planning
process assisted under Section 175 of Part D, Plan Requirements for
Nonattainment Areas. The Guidelines must Include information on:
1.	methods to Identify and evaluate alternative planning and
control activities (this Information Is principally contained
1n Chapter III (Process) of the guidelines);
2.	methods of reviewing plans on a regular basis as conditions
change or new information 1s presented (Chapters III (Process),
IV (Documentation), V (Progress Reports));
3.	Identification of funds and other resources necessary to
implement the plan, including Interagency agreements on
providing such funds and resources (Chapter I and Appendix F,
Identification of Funds to Implement the Plan);
4.	methods to assure participation by the public 1n all phases
of the planning process (Chapter III (Process)); and
5.	such other methods as the Administrator determines necessary
to carry out a continuous planning process.
3	Appendix A 1s a summary of the transportation-related sections of the
Clean Air Act.
4	Appendix C illustrates how the transportation-air quality planning
process could fit into the entire SIP revision process.
5	Sections 171(1), 172(B)(2)(3).
6	EPA identified nonattainment areas 1n a press release on February 23,
1978 and also 1n the March 3, 1978 Federal Register.
7	EPA and DOT jointly issued Section 174 guidelines in December 1977.
This guidance concerns designation of lead planning organizations for
nonattainment areas and determination of agency responsibilities. By
April 1, 1978, the Governors of all states with nonattainment areas
must transmit to EPA a certification of the lead planning organization
and a joint determination of agency responsibilities for those areas.

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8	Written evidence that the state, the general purpose local government
or governments, or a regional agency designated by general purpose local
governments for such purpose, have adopted by statute, regulation, ordinance
or other legally enforceable document the necessary requirements and
schedules and timetables for compliance and are committed to implement
and enforce the appropriate elements of the SIP. The relevant organiza-
tions shall provide evidence that the legally enforceable attainment
measures and the "criteria, standards and implementing procedures necessary
for effectively guiding and controlling major decisions as to where growth
shall and shall not take place," prepared by state and local governments
1n compliance with Section 701 of the Housing Act of 1954, as amended, are
fully coordinated in the attainment and maintenance of the NAAQS.
9	As defined by the U.S. Bureau of Census, urbanized areas generally Include
core cities plus any closely settled suburban areas.
10	The transportation-air quality planning process should:
(1)	Consider social, economic, energy, transportation, air qual ity,
and other environmental effects, In support of the require-
ments of 23 USC 109(h), Sections 5(h)(2) and 15 of the UMT
Act (49 USC 1604(h)(2) and 1610) and Sections 108(f)(2)(C)
and 172(b)(9) of the Clean Air Act (42 USC 7408(f)(2)(C) and
7502(b)(9)).
(2)	Be coordinated with transportation planning pursuant to
23 USC 134, 49 USC 1607(a). and 23 USC 450.120, 109(F)
and 307(c) in support of the requirements of Section 174(b)
of the Clean Air Act (42 USC 7504(b)).
(3)	Ensure public, local government and state legislatures
Involvement 1n support of the requirements of Sections
172(b)(9), 121, and 127 of the Clean Air Act (42 USC
7502(b)(9), 7421, and 7427).
11	Section 172(b)(9) of the Clean A1r Act specifies that 1979 SIP revisions
shall:
evidence public ... Involvement and consultation 1n accordance
with Section 174 (relating to planning procedures) and include
... a summary of public comment on [the] analysis [of the
effects of plan provisions]
Section 127, Public Notification, requires SIPs to contain effective
measures for public notification of air quality standard violations:

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to advise the public of the health hazards associated with such
pollution, and to enhance public awareness of the measures
which can be taken to prevent such standards from being exceeded
and the ways 1n which the public can participate in regulatory
and other efforts to Improve air quality.
Most specifically, Section 108(e)(4) directs that the transportation
planning guidelines shall include information on:
methods to assure participation by the public in all phases
of the planning process.
Finally, the DOT joint planning regulations (CFR 450.120) specify that
the urban transportation planning process shall "include provisions
to ensure involvement of the public."
12	The selection of an ambitious emission reduction target such as
15-20% 1s necessary to Insure that a sufficient range of measures
1s adequately evaluated. Certain ambitious and possibly contro-
versial classes of measures (e.g., parking management, pricing, auto
limitation) should be Included when evaluating alternatives to
meet ambitious targets. A priori rejection of these measures 1s
not acceptable. All agencies engaged 1n the SIP revision process
1n each urban area should jointly decide for that urban area a
specific, ambitious emission reduction target for the purpose of
developing and analyzing alternative transportation strategies.
The 15-20% figure 1s not meant to be an arbitrary selection
of an achievable emission reduction for all urban areas, but
rather 1s one example of such a target.
13	Progress reports are expected to be brief, but complete (e.g., not
exceeding 6 to 12 pages). Longer reports may be necessary In non-
attainment areas requiring extensive air quality-related
transportation activities.

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