CFR›Title 43›Subtitle B›Chapter I›Part 423›Subpart D ContainsSection 423.50CorpusDaily eCFRDisplayed edition2026-05-12Last updated2026-05-12 Subpart D—Authorization of Otherwise Prohibited Activities Sections 423.50 § 423.50 How can I obtain permission for prohibited or restricted uses and activities? Previous C Subpart C—Rules of Conduct Next E Subpart E—Special Use Areas