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Transportation and Air Quality

About the Office of Transportation and Air Quality

This Web page provides general information about EPA's Office of Transportation and Air Quality: its mission, programs, and organizational structure.


Christopher Grundler (biography)
U.S. Environmental Protection Agency
Office of Transportation and Air Quality (6401A)
1200 Pennsylvania Avenue, NW
Washington, DC 20460
(202) 564-1682


The Office of Transportation and Air Quality's (OTAQ) mission is to protect human health and the environment by:
  • Reducing air pollution and greenhouse gas emissions from mobile sources and the fuels that power them.
  • Advancing clean fuels and technology.
  • Encouraging business practices and travel choices that minimize emissions.
OTAQ's programs address emissions from the range of mobile sources: cars and light trucks, large trucks and buses, farm and construction equipment, lawn and garden equipment, nonroad recreational vehicles (e.g., dirt bikes and snowmobiles), marine engines, aircraft, and locomotives. 

OTAQ's primary activities include:
  • Assessing mobile source-related air quality problems and developing sophisticated modeling tools to develop solutions, measure results, and support emission inventories.
  • Establishing national standards to reduce emissions from on-road and nonroad mobile sources of pollution.
  • Implementing national mobile source standards through certification processes and in-use monitoring strategies.
  • Developing fuel efficiency programs and technologies to reduce the emission of greenhouse gases from the transportation sector.
  • Researching, evaluating, and developing advanced technologies for controlling emissions, as well as developing new strategies for improving fuel efficiency.
OTAQ's National Vehicle and Fuel Emissions Laboratory provides OTAQ with emissions testing services in support of rulemakings, certification, enforcement actions, and test procedures development.

General Information:

This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ).
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