CFR›Title 47›Chapter I›Part 42 ContainsSubject groups Applicability–Specific Instructions for Carriers Offering Interexchange ServicesCorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 PART 42—PRESERVATION OF RECORDS OF COMMUNICATION COMMON CARRIERS Subject Groups Applicability Applicability Section 42.01 General Instructions General Instructions Sections 42.1–42.6 Specific Instructions for Carriers Offering Interexchange Services Specific Instructions for Carriers Offering Interexchange Services Sections 42.10–42.11 Authority47 U.S.C. 154(i), 219, 220.Source51 FR 32653, Sept. 15, 1986, unless otherwise noted. Previous 36 Part 36—Jurisdictional Separations Procedures; Standard Procedures for Separating Telecommunications Property Costs, Revenues, Expenses, Taxes and Reserves for Telecommunications Companies Next 43 Part 43—Reports of Communication Common Carriers, Providers of International Services and Certain Affiliates