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  2. Clean Air Act Advisory Committee (CAAAC)

Mobile Sources Technical Review Subcommittee (MSTRS) of the CAAAC

The Subcommittee provides the Clean Air Act Advisory Committee (CAAAC) with independent advice, counsel and recommendations on the scientific and technical aspects of programs related to mobile source air pollution and motor fuels. Through its various workgroups, the MSTRS addresses a wide range of developments, issues and research areas such as emissions modeling, air toxics, innovative and incentive based transportation policies, on-board diagnostics, heavy-duty engines and reformulated gasoline.

The MSTRS is composed of approximately 30 technical experts drawn from a wide range of stakeholder organizations. Included on the roster are individuals from the automotive industry (vehicles, engines and components), energy companies, academia, public interest groups, and state/regional/local governments. As a result of the workgroup structure employed to address specific areas, almost 60 people are involved in the work of this subcommittee.

Meetings of the full subcommittee are held biannually. Workgroups may meet several times per year in addition to the full subcommittee meetings. Since its formation in 1996, the MSTRS has presented several major reports and recommendations to the CAAAC which, in turn, have been forwarded to the Agency for its consideration and action.

Current MSTRS Membership List

2014 Ports Initiative Workgroup Participants

About the Ports Initiative

MOVES Model Review Workgroup


Contact Information

For general committee information or to register for an upcoming meeting please email MSTRS@epa.gov.

Designated Federal Officer
Clayton Batko
Office of Transportation and Air Quality
Mail Code 6401A
1200 Pennsylvania Avenue, N.W.
Washington, D.C. 20460

Chair
Dr. Rachel Muncrief
Acting Executive Director
International Council on Clean Transportation
Washington, DC


Upcoming Meeting

More information on the Spring 2025 Meeting will be posted soon.

Recent Meetings

December 13, 2024
  • December 2024 agenda, summary, and presentations
May 30, 2024
  • May 2024 agenda, summary, and presentations
November 29, 2023
  • November 2023 agenda, summary, and presentations
July 31, 2023
  • July 2023 agenda and summary
May 11, 2023
  • May 2023 agenda, summary, and presentations
November 30, 2022
  • November 2022 agenda, summary, and presentations 
May 25, 2022
  • May 2022 agenda, summary, and presentations 
October 14, 2021
  • October 2021 agenda, summary, and presentations 
June 15, 2021
  • June 2021 agenda, summary, and presentations
October 19, 2020
  • October 2020 agenda and summary
March 31, 2020
  • March 2020 agenda and summary
September 17, 2019
  •  September 2019 agenda, summary and presentation
April 2, 2019
  • April 2019 agenda, summary and presentations
May 22, 2018
  • May 2018 agenda, summary and presentations
May 31, 2017
  • May 2017 agenda, summary and presentations
October 18, 2016
  • October 2016 agenda, summary, and presentations
June 16, 2016
  • June 2016 agenda, summary, and presentations
December 3, 2015
  • December 2015 agenda, summary, and presentations
May 5, 2015
  • May 2015 agenda, summary, and presentations
December 9, 2014
  • December 2014 agenda, summary, and presentations
May 7, 2014
Chicago, IL
  • May 2014 agenda, summary, and presentations
March 3, 2014
Webinar
  • March 2014 agenda, summary, and presentations
October 29, 2013
Washington, DC
  • October 2013 agenda, summary, and presentations
Earlier Meetings

Clean Air Act Advisory Committee (CAAAC)

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Contact Us About the Clean Air Act Advisory Committee (CAAAC)
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Last updated on March 19, 2025
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