Frequent Questions
What's New in OTAQ
OTAQ Recent Additions
- September 17: EPA issued a direct final rule to amend the definition of heating oil under the RFS program.
- September 14: EPA announces 2013 Biomass-Based Diesel Volume for Renewable Fuel Standard program.
- August 31: EPA established Nonconformance Penalties for On-Highway Heavy-Duty Diesel Engines.
OTAQ Press Releases
- September 14, 2012: Motorcycle Importer Pays Penalty to Resolve Clean Air Violations
- September 14, 2012: EPA Sets Bio-based Diesel Volumes for 2013
- September 6, 2012: Recreational Vehicle Manufacturer to Pay $885,000 Penalty to Resolve Violations of the Clean Air Act
OTAQ Federal Register Notices
- September 27, 2012: Regulation of Fuels and Fuel Additives: 2013 Biomass-Based Diesel Renewable Fuel Volume
- September 24, 2012: Adequacy Status: South Carolina: Portion of York County, SC Within Charlotte-Gastonia-Rock Hill, NC-SC 1997 8-Hour Ozone Nonattainment Area; Maintenance Plan Motor Vehicle Emissions Budget for Transportation Conformity Purposes
- September 19, 2012: Approval and Promulgation of Implementation Plans; Texas; Beaumont/Port Arthur Ozone Maintenance Plan Revision to Approved Motor Vehicle Emissions Budgets
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.)