
    No. 75-909.
    No. 75-960.
    No. 75-1050.
    No. 75-1055.
    Environmental Protection Agency v. Brown, Governor of California, et al.; and Environmental Protection Agency v. Arizona et al. Environmental Protection Agency v. Maryland et al. Virginia ex rel. Air Pollution Control Board v. Train, Administrator, Environmental Protection Agency. Train, Administrator, Environmental Protection Agency v. District of Columbia et al.
   C. A. 9th Cir. ;

C. A. 4th Cir. ;

C. A. D. C. Cir.; and

C. A. D. C. Cir. [Certiorari granted, 426 U. S. 904.] Motion of Natural Resources Defense Council, Inc., for leave to file a brief as amicus curiae denied.  