Related DOT Programs

The Department of Transportation has a variety of on-going programs, carried out by different agencies. Many of these programs have some direct and some indirect beneficial impacts on greenhouse gas emissions and on other types of pollution from transportation.

Automotive Fuel Economy Program

Standards for automobile fuel economy were established under the Energy Policy and Conservation Act (EPCA) of 1975, and have subsequently been both increased and expanded to cover most light trucks. The Corporate Average Fuel Economy (CAFE) program was established to determine vehicle manufacturers' compliance with these standards.

View more on the Automotive Fuel Economy Program.

Transportation and Air Quality

Since the 1950's, we have known that vehicle exhaust fumes play a major role in the deterioration of air quality in urban areas. This knowledge led to widespread State and Federal regulatory activity, which eventually resulted in the passage of the modern Clean Air Act (CAA) in 1970.

View more on Transportation and Air Quality.

Congestion Mitigation and Air Quality (CMAQ) Improvement Program

Reauthorized in 1998 under the Transportation Equity Act for the 21st Century (TEA-21), the CMAQ program provides over $8.1 billion dollars in funds to State DOTs, MPOs, and transit agencies to invest in projects that reduce emissions from transportation-related sources over a period of six years (1998-2003).

View more on the CMAQ Improvement Program.

It All Adds Up to Cleaner Air

A unique collaborative effort of the U.S. Department of Transportation (DOT) and the U.S. Environmental Protection Agency (EPA). The program emphasizes simple actions people can take that are convenient and can make a difference in air quality when practiced on a wide scale.

View more on the It All Adds Up to Cleaner Air effort.

Aviation and Emissions Reductions

Several programs sponsored by the U.S. Department of Transportation focus on ways to improve aircraft operations and criteria pollutant emissions, and have the potential to also reduce greenhouse gas emissions.

View more on Aviation and Emissions Reductions.

Relevant DOT Announcements

• NHTSA Issues Report on Dual-Fuel Vehicle Economy, Proposes Extension of Program to Model Year 2008
  On March 6, 2002, NHTSA released a proposal on the implementation of the Alternative Motor Fuels Act of 1988 (AMFA), and recommended extending the CAFE credit incentive for dual-fueled vehicles through the end of the 2008 model year. (This link will take you to NHTSA's Press Release page; please find NHTSA Issues Report on Dual-Fuel Vehicle Economy, Proposes Extension of Program to Model Year 2008 No. : NHTSA 14-02, Date : Wednesday, March 6, 2002)