Supreme Court of the United States June 15, 1981, 79-1538 (Hodel v. Virginia Surface Mining & Reclamation Assn., Inc.)

*268Justice Marshall

delivered the opinion of the Court.

These cases arise out of a pre-enforcement challenge to the constitutionality of the Surface Mining Control and Reclamation Act of 1977 (Surface Mining Act or Act), 91 Stat. 447, 30 U. S. C. § 1201 et seq. (1976 ed., Supp. III).