CFR›Title 47›Chapter I›Part 1›Subpart BB ContainsSections 1.30000–1.30004CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart BB—Disturbance of AM Broadcast Station Antenna Patterns Sections 1.30000 § 1.30000 Purpose. 1.30001 § 1.30001 Definitions. 1.30002 § 1.30002 Tower construction or modification near AM stations. 1.30003 § 1.30003 Installations on an AM antenna. 1.30004 § 1.30004 Notice of tower construction or modification near AM stations. Source78 FR 66295, Nov. 5, 2013, as amended at 78 FR 70499, Nov. 26, 2013, unless otherwise noted. Previous B Subpart B—Hearing Proceedings Next I Subpart I—Procedures Implementing the National Environmental Policy Act of 1969