Authorities Cited: United States Code 28 U.S.C. § 1291 42 U.S.C. § 416(i) 42 U.S.C. § 423 42 U.S.C. § 423(d)(5)(B) Code of Federal Regulations 20 C.F.R. § 404.1512(a) 20 C.F.R. § 404.1512(d) 20 C.F.R. § 404.1512(e) Circuit Courts 888 F.2d 706, 710 961 F.2d 1495, 1497 13 F.3d 359, 360-361 54 F.3d 484, 488 73 F.3d 1019, 1022 113 F.3d 1162, 1167 385 F.3d 1268, 1271 399 F.3d 1257, 1263