CFR›Title 18›Chapter I›Part 346 ContainsSections 346.1–346.3CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 346—OIL PIPELINE COST-OF-SERVICE FILING REQUIREMENTS Sections 346.1 § 346.1 Content of filing for cost-of-service rates. 346.2 § 346.2 Material in support of initial rates or change in rates. 346.3 § 346.3 Asset retirement obligations. Authority42 U.S.C. 7101-7352; 49 U.S.C. 60502; 49 App. U.S.C. 1-85. Previous 344 Part 344—Filing Quotations for U.S. Government Shipments at Reduced Rates Next 347 Part 347—Oil Pipeline Depreciation Studies