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EPA and NHTSA propose changes to the motor vehicle fuel economy label.

[Washington, D.C.] : United States Environmental Protection Agency, Office of Transportation and Air Quality, 2010. 2010

Final technical support document.

[Washington, D.C.] : United States Environmental Protection Agency, Office of Transportation and Air Quality, 2006. 2006

Greenhouse gas emissions standards and fuel efficiency standards for medium- and heavy-duty engines

[Washington, D.C.] : United States Environmental Protection Agency, Office of Transportation and Air Quality, 2012. 2012

Greenhouse gas emissions standards and fuel efficiency standards for medium- and heavy-duty engines

[Washington, D.C.] : U.S. Environmental Protection Agency, Office of Transportation and Air Quality, [2012] 2012

Proposed rulemaking for greenhouse gas emissions and fuel efficiency standards for medium- and heavy

[Washington, D.C.] : U.S. Environmental Protection Agency, Office of Transportation and Air Quality, Assessment and Standards Division : Office of International Policy, Fuel Economy, and Consumer Programs, National Highway Traffic Safety Administration, U.S. Department of Transportation, 2015. 2015