Court of Appeals for the D.C. Circuit December 14, 1979, 78-1006 (Alabama Power Company v. Douglas M. Costle, as Administrator, Environmental Protection Agency, Sierra Club, Intervenors.)

PER CURIAM:

This case concerns the validity of final regulations

1

promulgated by the Environmental Protection Agency (EPA) on June 19,1978 embracing the prevention of significant deterioration of air quality in the nation’s “clean air areas.”

2

These “PSD” regulations interpreted and began the implementation of various provisions of the

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Clean Air Act Amendments of 1977.