Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines: Technical Amendments to Evaporative Emissions Regulations, Dynamometer Regulations, and Vehicle Labeling

EPA is taking direct final action to make changes to certain provisions of the evaporative and refueling emission regulations for light-duty vehicles, light-duty trucks and heavy-duty vehicles up to 14,000 pounds GVWR, the four-wheel drive dynamometer test provisions, and the vehicle labeling regulations. The evaporative changes are intended to: reduce manufacturers' certification evaporative/refueling test burden; clarify existing evaporative/refueling requirements; and better harmonize federal evaporative/refueling test procedures with California evaporative/refueling test procedures. The dynamometer changes are intended to amend outdated regulations to now include four-wheel drive provisions. The labeling changes are intended to amend regulations to remove outdated information. Today's action does not change the stringency of these existing programs.