Authorities Cited: United States Code 5 U.S.C. § 706(2)(A) 42 U.S.C. § 7413(c) Code of Federal Regulations 40 C.F.R. § 70.4(d)(3)(ix) 40 C.F.R. § 70.5(c)(8)(ii)(A) Supreme Court 262 U.S. 447, 485-486 467 U.S. 837, 842-843 504 U.S. 555, 560 535 U.S. 212, 217 547 U.S. 47, 52 Circuit Courts 810 F.2d 707, 709-710 122 F.3d 370, 373 292 F.3d 895, 899 321 F.3d 316, 332-333 348 F.3d 772 353 F.3d 976, 982 427 F.3d 172 498 F. Supp. 2d 1010, 1018