CFR›Title 47›Chapter I›Part 64›Subpart DD ContainsSections 64.5000–64.5001CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart DD—Prepaid Calling Card Providers Sections 64.5000 § 64.5000 Definitions. 64.5001 § 64.5001 Reporting and certification requirements. Source71 FR 43673, Aug. 2, 2006, unless otherwise noted. Previous D Subpart D—Procedures for Handling Priority Services in Emergencies Next EE Subpart EE—TRS Customer Proprietary Network Information.