Transportation and Air Quality
Frequent Questions
What's New in OTAQ
OTAQ Recent Additions 
OTAQ Press Releases
- May 10, 2013: MONDAY: EPA to Recognize Center for Transportation and the Environment and Delta Airlines for Grant Project Completion
- April 3, 2013: EPA Voids Certificates Approving Import of Over 70,000 Small Recreational Vehicles
- March 29, 2013: EPA Proposes Achievable Cleaner Fuels and Cars Standard, Slashing Air Pollution and Providing Extensive Health Benefits
OTAQ Federal Register Notices
- May 10, 2013: Approval and Promulgation of Air Quality Implementation Plans; Ohio; Canton-Massillon 1997 8-Hour Ozone Maintenance Plan Revision to Approved Motor Vehicle Emissions Budgets
- May 10, 2013: Approval and Promulgation of Air Quality Implementation Plans; Indiana; Lake and Porter Counties, Indiana, 1997 8-Hour Ozone Maintenance Plan and 1997 Annual Fine Particulate Matter Maintenance Plan Revision to Approved Motor Vehicle Emissions Budgets
- April 18, 2013: Supplemental Determination for Renewable Fuels Produced Under the Final RFS2 Program From Grain Sorghum; Correction
EPA's Office of Transportation and Air Quality protects public health and the environment by regulating air pollution from motor vehicles, engines, and the fuels used to operate them, and by encouraging travel choices that minimize emissions. These "mobile sources" include cars and light trucks, heavy trucks and buses, nonroad engines, equipment, and vehicles. For more information see:
- About the Office of Transportation and Air Quality (OTAQ)
- About the National Vehicle and Fuel Emissions Laboratory (NVFEL)
OTAQ's top sites
OTAQ's programs and website topics (A detailed list of programs and topics is on our site map.)