Regulations and Guidance in vehicles

Notice of Upcoming Joint Rulemaking to Establish Vehicle GHG Emissions and CAFE
There is a critically important need for our country to address global climate change and to reduce oil consumption. In this context, EPA and DOT currently intend to work in coordination to propose standards for control of emissions of greenhouse gases and for fuel economy, respectively.

Corporate Average Fuel Economy (C A F E )
First enacted by Congress in 1975, the purpose of CAFE is to reduce energy consumption by increasing the fuel economy of cars and light trucks. Regulating CAFE is the responsibility of NHTSA and the Environmental Protection Agency (EPA). NHTSA sets fuel economy standards for cars and light trucks sold in the U.S.; EPA calculates the average fuel economy for each manufacturer. This site contains an immense amount of information about the CAFE program, including a program overview, related rulemaking activities, research, fleet characteristics and summaries of manufacturers’ fuel economy performance since 1978.

Average Fuel Economy Standards, Passenger Cars and Light Trucks, Model Year 2011
NHTSA estimates that the MY 2011 standards will raise the industry-wide combined average to 27.3 mpg, save 887 million gallons of fuel over the lifetime of the MY 2011 cars and light trucks, and reduce CO2 emissions by 8.3 million metric tons during that period.

CAFE Request for Product Plan Info for Passenger Cars and Trucks through MY 2020
The purpose of this request for comments is to acquire new and updated information regarding vehicle manufacturers’ future product plans to assist the agency in assessing what corporate average fuel economy (CAFE) standards should be established for model years 2012 through 2016 passenger cars and light trucks. The establishment of those standards is required by the Energy Policy and Conservation Act, as amended by the Energy Independence and Security Act (EISA) of 2007, P.L. 110-140.

Notice of Intent to Prepare EIS and Scoping Notice, Model Years 2012-2016
The purpose of this notice is to announce that NHTSA plans to prepare an Environmental Impact Statement (EIS) to address the potential environmental impacts of the agency’s Corporate Average Fuel Economy (CAFE) program for passenger cars and light trucks. The EIS will consider the potential environmental impacts of new fuel economy standards for model year 2012-2016 passenger cars and light trucks that NHTSA will be proposing pursuant to the Energy Independence and Security Act of 2007. To this end, this notice initiates the NEPA scoping process to identify the environmental issues and reasonable alternatives to be examined in the EIS, and requests comments regarding those and others matters related to the scope of NHTSA’s NEPA analysis for the new standards.

Average Fuel Economy Standards, Passenger Cars and Light Trucks, MY 2011-2015
Proposes substantial increases in the Corporate Average Fuel Economy (CAFE) standards for passenger cars and light trucks that would enhance energy security by improving fuel economy. Since the carbon dioxide (CO2) emitted from the tailpipes of new motor vehicles is the natural by-product of the combustion of fuel, the increased standards would also address climate change by reducing tailpipe emissions of CO2. Those emissions represent 97 percent of the total greenhouse gas emissions from motor vehicles. Implementation of the new standards would dramatically add to the billions of barrels of fuel already saved since the beginning of the CAFE program in 1975.

CAFE Request for Product Plan Info for Passenger Cars and Trucks through MY 2017
The purpose of this request for comments is to acquire new and updated information regarding vehicle manufacturers’ future product plans to aid in implementing the President’s plan for reforming and increasing corporate average fuel economy (CAFE) standards for passenger cars and further increasing the already reformed light truck standards. The agency is seeking information in anticipation of obtaining statutory authority to reform the passenger car CAFE program and to set standards under that structure for MY 2010 – 2017 passenger cars. The agency is also seeking this information in anticipation of setting standards for MY 2012-2017 light trucks.

Light Truck Fuel Economy Standard Rulemaking (Model Years 2008-2011)
This final rule reforms the structure of the Corporate Average Fuel Economy (CAFE) program for light trucks and establishes higher CAFE standards for model year (MY) 2008-2011 light trucks. Manufacturers may comply with CAFE standards established under the reformed structure (Reformed CAFE) or with standards established in the traditional way (Unreformed CAFE) during a transition period of MYs 2008-2010. In MY 2011, all manufacturers will be required to comply with a Reformed CAFE standard. Under Reformed CAFE, fuel economy standards are restructured so that they are based on a measure of vehicle size called "footprint," the product of multiplying a vehicle's wheelbase by its track width. A target level of fuel economy is established for each increment in footprint. Smaller footprint light trucks have higher targets and larger ones, lower targets.

Summary of Fuel Economy Performance
Fleet fuel economy performances, by manufacturers, since 1978, including both imported and domestic passenger cars and light trucks. Also available are the overall fleet fuel economy performance and sales volume data.

Automotive Fuel Economy Program Reports
These annual reports summarize the fuel economy performance of the current vehicle fleet and highlights the activities of NHTSA during the calendar year. Reports also include a section summarizing rulemaking activities