49 CFR 1580.109 - Preemptive effect.
Under 49 U.S.C. 20106, issuance of the regulations in this part preempts any State law, regulation, or order covering the same subject matter, except an additional or more stringent law, regulation, or order that is necessary to eliminate or reduce an essentially local security hazard; that is not incompatible with a law, regulation, or order of the United States Government; and that does not unreasonably burden interstate commerce. For example, under 49 U.S.C. 20106, issuance of § 1580.107 of this subpart preempts any State or tribal law, rule, regulation, order or common law requirement covering the same subject matter.