CFR›Title 47›Chapter I›Part 64›Subpart I ContainsSections 64.901–64.905CorpusDaily eCFRDisplayed edition2026-05-20Last updated2026-05-20 Subpart I—Allocation of Costs Sections 64.901 § 64.901 Allocation of costs. 64.902 § 64.902 Transactions with affiliates. 64.903 § 64.903 Cost allocation manuals. 64.904 § 64.904 Independent audits. 64.905 § 64.905 Annual certification. Previous BB Subpart BB—Restrictions on Unwanted Mobile Service Commercial Messages Next II Subpart II—Communications Service Protections for Victims of Domestic Violence, Human Trafficking, and Related Crimes