CFR›Title 9›Chapter I›Part 3›Subpart C›Subject Group Facilities and Operating Standards ContainsSections § 3.50–§ 3.53CorpusDaily eCFRDisplayed edition2026-10-08Last updated2026-10-08 Sections § 3.50 § 3.50 Facilities, general. § 3.51 § 3.51 Facilities, indoor. § 3.52 § 3.52 Facilities, outdoor. § 3.53 § 3.53 Primary enclosures.