This report summarizes a Federal Highway Administration (FHWA) seminar on key issues in air quality and transportation planning held last year, supplemented by an individual perspective on findings which have emerged during the year since the 1991 seminar. The passage of the Clean Air Act Amendments of 1990 confirmed attainment of air quality as a central objective of transportation policy, planning, and program development. The Intermodal Surface Transportation Efficiency Act (ISTEA) of 1991 further integrated conformity with the Clean Air Act into State and metropolitan transportation planning.


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