INTERSTATE DRUG AND ALCOHOL OVERSIGHT.

SEC. 117. [49 U.S.C. 60102 note] INTERSTATE DRUG AND ALCOHOL OVERSIGHT. (a) In General.—Not later than 18 months after the date of enactment of this Act, the Secretary shall amend the auditing program for the drug and alcohol regulations in part 199 of title 49, Code of Federal Regulations, to improve the efficiency and processes of those regulations as applied to— (1) operators; and (2) pipeline contractors working for multiple operators in multiple States. (b) Requirement.—In carrying out subsection (a), the Secretary shall minimize duplicative audits of the same operators, and the contractors working for those operators, by the Administration and multiple State agencies. (c) Rule of Construction.—Nothing in this section may be construed to require modification of the inspection or enforcement authority of any Federal agency or State.