CLEAN
A   i   R
T    ECHNOLOGY
CENTER
&EPA
          Fall  1998
 EPA-456/N-98-002
                 CATC Information Bulletin
                          Fall 1998

    Well, the CATC has completed its first full year.  Our stats indicate that
activity has picked up considerably, especially through our Web sites.  Thank
you for your support and cooperation during our transition from the old CTC.
Remember, we're here to help with your air pollution problems. Just call or send
E-mail (see enclosed brochure).  We'll be happy to help.
    Our last  CATC Information Bulletin (Winter 1998)  requested old CTC
News recipients to resubscribe if they wanted to continue to be on our mailing
list (postal mail for non-EPA staff). Many did not resubscribe.  So, please share
this Information Bulletin and enclosed CATC brochure with those who may have
need  of CATC services.  We also welcome comments  and suggestions to
improve our services and products and look forward to hearing from you.
    We tend to use a lot of ACRONYMS, so we've included a section called
Short-Talk at the end of this newsletter.  Just refer to this section if you need
help with an ACRONYM.
New Reports and Technical Bulletins:

Landfill Gas Emissions Model  (LandGEM) version
2.01 and "User's Manual -

Landfill Gas Emissions Model," EPA-600/R-98-054,
May 1998. (CATC)
                                                                   CATC Product
                                                                     Information
                         Technical Bulletin: "Zeolite, A Versatile Air Pollutant Adsorber," EPA-456/F-98-
                         004, July 1998. (CATC)

                         "RACT/BACT/LAER Clearinghouse Annual Report for 1998: A compilation of
                         Control Technology Determinations" EPA-456/R-98-004, June 1998.  (RBLC)

                         "RACT/BACT/LAER  Clearinghouse  Information  System (RBLC)  User's
                         Manual," EPA-456/B-98-002.  (RBLC)

                         "Emisiones al Aire de la Combustion de Llantas I/sac/as," Spanish language
                         version of "Air Emissions from Scrap Tire Combustion" (EPA-600/R-97-115),
                         October 1997. (CICA)

                         Coming Attractions:

                             The long awaited paint spray gun  cleaning equipment test method
                         report  is finally making progress.  The draft report has been reviewed and
                         comments are being addressed. A final report is expected in early 1999.
                         The CATC is working on several Technical Bulletins. Topics include selection
                         of an  adsorber  for VOC  control, NOx  control and  prevention, VOC-free
                         coatings, and refrigerated  condensers.   We hope to release one Technical
                         Bulletin every 3 months.  Check the CATC Web, Product Information, for the
                         latest release.
                             CICA is finalizing reports on auto refinishing in Ciudad Juarez, Mexico,
                         unique emission sources in Mexican, Mexico, and emissions from street
                         vendor cooking activities.  All of these reports should be available by January
                         31, 1999.

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           Technology &
Regulation Data Bases
RBLC  Web Developments:

     The RBLC  has experienced  some
delays in entering and updating data due to
a change in contractor support.  The new
contractor is now onboard and things should
be returning to normal. We hope to add links
to the text of all regulations summarized in
our regulation data base, software tools to help you evaluate control/prevention
options,  and a library of useful reference material. Thanks for your patience and
cooperation as we gradually transform the RBLC Web into a more user-friendly and
useful Web site.

NSR Early Notification System:  The RBLC will be the home for the NSR
Early Notification System.  Prototype development work  is now  underway.
Current plans are to replace the old RBLC Transient data base on the TTN BBS
with the NSR Early Notification System and make it an integral part of entering new
data into the RBLC Web.   The  Transient data  base currently stores new
determinations prior to promotion to the main RBLC data base.  Our goal is to
provide agencies with a convenient way to enter the required early  notification
information on new permit applications. This will allow Federal Land Managers and
others responsible  for protecting  our natural  resources to identify potential
problems early in the permitting process. In addition, the notification will serve as
an initial data entry into the RBLC with provisions to complete data entry as permits
are processed and finalized. The early notification program will be required in final
NSR regulations scheduled to be promulgated in June 1999.   The RBLC's NSR
early Notification System will be operational by the  promulgation date.
New/Innovative  Technology Web Site: The RBLC is developing  a
prototype Web site that will allow vendors to post information on new and emerging
air pollution technologies, and probably existing technologies.  Our  goal is to
provide timely access to information on  new technologies to help you identify
options and make decisions related to  RACT/BACT/LAER or other regulatory
requirements. We hope to have a prototype available by April 1999.

Contributions to  the RBLC: Thank you for all the updates and additions to
the RBLC. The RBLC  has  been working with EPA Regional Offices to identify
and include determinations that need to be in the Clearinghouse.  In addition to
RACT, BACT, and LAER permits, you should also submit any precedent-setting
technology application that achieves a lower emission rate, is more cost
effective, and/or demonstrates a new or innovative approach in controlling or
preventing air pollution. Often the best solutions are demonstrated by sources
trying to avoid the NSR  process  by  getting under  applicability  emission
thresholds.  Even if these accomplishments are not subject to NSR, they need
to be in the RBLC.
     If you need a little  more motivation,  remember that the CAA requires
agencies to submit LAER determinations. New NSR rules will require the same
for BACT determinations and also will require that a source be listed in the NSR
Early Notification System (i.e., to be part  of the RBLC) before a valid permit can
be issued.  So, for those of you who are RBLC contributors, thankyou and keep
up the good work.  For those of you  who are  not yet contributing or are
procrastinating, we suggest that you get  into the habit of entering data now and
avoid the rush when the new NSR rules are promulgated in June 1999.

MACT STANDARDS / AIR TOXICS
     The  latest  information  on  MACT  standards (including  schedules),
hazardous air  pollutants (HAP), urban air toxics and/or air  toxics  program
activities in general can be found on the Unified Air Toxics Web  site (UATW) on
the TTN. To directly access the UATW, go to .

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                ACCESS TO CATC SERVICES

                      Fourth Quarter FY98
ACTIVITY
4th Qtr. FY98
Yr-to-Date  Change From 4th Qtr. FY97
HOTLINE:

CATC Calls           223

CATC Products         50

CATC Web/BBS     19,763

RBLC              7,401

Small Business        924


Total Accesses to
 CATC Services    28,361
                   1,088

                    903

                  61,728

                  26,764

                   5,448




                  95,931
                 + 23%

                 - 46%

                 + 72%

                  +  20%

                  +131%




                  +  52%
                                                                                                                       Small
                                                                                                   Business
                                                                                                  Assistance
"Potential  to  Emit:  A  Guide  for Small
Businesses" should be available by December
1998.  Prepared by the Small Business Assistance
Program (SBAP), this document will provide plain
English guidance to owners and operators of small businesses on what is
potential to emit, and how  to determine potential to emit for their facility
(including example calculations).  Information on how to obtain a copy of this
guidebook will be available on the SBAP Web site  (www.epa.gov/ttn/sbap).
                 Short Talk
CAA-
CTC-
HAP-
LAER-
MACT-
NOx-
NSR-
RACT-
RBLC-
TTN-
UATW
VOC-
 Clean Air Act
 Control Technology Center (now CATC)
 Hazardous Air Pollutants
 Lowest Achievable Emission Rate
 Maximum Achievable Control Technology
 Oxides of Nitrogen
 New Source Review
 Reasonably Available Control Technology
 RACT/BACT/LAER Clearinghouse
 Technology Transfer Network
-Unified Air Toxics Web Site
 Volatile Organic Compounds

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