CFR›Title 10›Chapter I›Part 63›Subpart B›Subject Group License Issuance and Amendment ContainsSections 63.41–63.46CorpusDaily eCFRDisplayed edition2026-10-26Last updated2026-10-26 Sections 63.41 § 63.41 Standards for issuance of a license. 63.42 § 63.42 Conditions of license. 63.43 § 63.43 License specification. 63.44 § 63.44 Changes, tests, and experiments. 63.45 § 63.45 Amendment of license. 63.46 § 63.46 Particular activities requiring license amendment. Previous License Application License Application Next Permanent Closure Permanent Closure