Clean Air Act Amendments
Call Number: P.L. 101-549
Revises national ambient air quality standards and state and Environmental Protection Agency (EPA) implementation programs, and requires new control measures in nonattainment areas. Revises standards for passenger car, urban bus, and truck emissions; requires motor vehicles to be equipped with emission control diagnostic systems and systems to control evaporative emissions during refueling. Establishes a list of air pollutants that are known to cause or may reasonably be anticipated to cause adverse human health or environmental effects, and requires periodic EPA review of the list. Revises EPA enforcement and penalization authority for Clean Air Act violations.