On July 2, 1999, MARAMA signed a contract with Carnegie Mellon University for preparation of an improved ammonia inventory. A final report was released in December 2001. A hardcopy of the final report describing the project can be obtained from MARAMA.

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Mid-Atlantic Regional Air Management Association

June 20, 1997

Mid-Atlantic Regional Air Management Association Members
Allegheny County Health Department Air Quality Program
Delaware Air Quality Management Section
District of Columbia Air Resources Management Division
Maryland Air & Radiation Management Administration
New Jersey Office of Air Quality Management
North Carolina Division of Air Quality
Pennsylvania Bureau of Air Quality
Philadelphia Air Management Services
Virginia Department of Environmental Quality Air Division 

711 W. 40th Street, Suite 318
Baltimore, MD 21211-2109
Phone: 410-467-0170
Fax: 410-467-1737 Main 

Last revised: 11/17/98

Source Apportionment Phase II Final Report (PDF format) - March 2005

      - Appendices 1-3 (PDF format) - March 2005

      - Appendices 4-5 (PDF format) - March 2005

      - Appendix 6.1 (PDF format) - March 2005

      - Appendix 6.2 (PDF format) - March 2005

      - Appendix 6.3 (PDF format) - March 2005

      - Appendix 6.4 (PDF format) - March 2005

      - Appendix 6.5 - 6.7 (PDF format) - March 2005

      - Appendix 7 (PDF format) - March 2005

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Background Information

The Mid-Atlantic Regional Air Management Association (MARAMA) working in partnership with the air quality small business assistance programs in Delaware, Pennsylvania, and Virginia developed the Mid-Atlantic Regional Small Business Anti-Idling Initiative. This effort provided support for the purchase and installation of anti-idling technology by independent truckers and small transport companies that qualify as small businesses (operating less than 50 trucks) located within two Environmental Protection Agency (EPA) Region III states, Delaware and Pennsylvania. The project produced data on the effectiveness of auxiliary power units (APU) in reducing idling emissions.

Small trucking companies represent a significant segment of the long haul population, operating vehicles that may pollute more due to vehicle age, abound in major metro areas and have great potential to reduce emissions. The challenge is that small business truckers cannot afford the up-front capital cost of the APU. The financial constraints for independent truckers and small transport companies are real and may prevent them from attempting to address truck idling and the subsequent environmental issues which truck idling creates. This project offered small businesses a non-regulatory opportunity to be a proactive participant in improving air quality.

Anti-idling equipment (generally known as an auxiliary power unit, auxiliary generator, or APU) is a unit that permits a trucker to heat and/or cool the cab of the truck without running the truck’s engine. This results in significant savings in fuel usage, wear and tear on the vehicle’s engine, and reductions in emissions.  Although often utilizing diesel fuel for operation of the generator, APUs burn less fuel than a truck’s main engine would consume while idling.


Report on the Mid-Atlantic Truck Engine Idle Reduction Technology Demonstration Program - June 2008 pdficon_small

List of Attachments

All documents are available for download in PDF format unless otherwise noted.