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This rulemaking would reconsider Corporate Average Fuel Economy (CAFE) standards for passenger cars and light trucks that were established in the agency's April 30, 2020 final rule. This rulemaking would respond to requirements of the Energy Independence and Security Act of 2007 (EISA), title 1, subtitle A, section 102, as it amends 49 USC 32902.  The statute requires that corporate average fuel economy standards be prescribed separately for passenger automobiles and non-passenger automobiles. For model years 2021 to 2030, the average fuel economy required to be attained by each fleet of passenger and non-passenger automobiles shall be the maximum feasible for each model year.  The law requires the standards be set at least 18 months prior to the start of the model year.