President Obama issued a Presidential Memorandum on May 21, 2010, concerning the development of a new generation of clean cars and trucks through innovative technologies and manufacturing. The President requested that EPA and NHTSA, on behalf of the Department of Transportation, develop, through notice and comment rulemaking, a coordinated National Program under the Clean Air Act (CAA) and the Energy Policy and Conservation Act (EPCA), as amended by the Energy Independence and Security Act (EISA), to reduce fuel consumption by and greenhouse gas emissions of light-duty vehicles for model years 2017-2025.

Source: Federal Register