5th Circuit Validates Preemption Based on Agency Informal Statements. O’Hara v. General Motors Corp., 508 F. 3d 753 (5th Cir. 2007). D.C. Circuit Curtails “Increased Risk” Standing. Public Citizen, Inc. v. National Highway Traffic Safety Administration, 2008 WL 169778 (D.C. Cir. 2008). D.C. Circuit Finds Adequate Notice in Obscure Administrative Decision. Abhe & Svoboda, Inc. v. Chao, 508 F.3d 1052 (2007). D.C. Circuit Finds no Inherent Agency Authority to Reverse Earlier Decision.