CFR›Title 14›Chapter I›Part 25›Subpart I ContainsSection 25.1801CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart I—Special Federal Aviation Regulations Sections 25.1801 § 25.1801 SFAR No. 111—Lavatory Oxygen Systems. SourceDocket No. FAA-2011-0186, Amdt. 25-133, 76 FR 12555, Mar. 8, 2011, unless otherwise noted. Previous H Subpart H—Electrical Wiring Interconnection Systems (EWIS) Next Special Federal Aviation Regulation No. 13 Special Federal Aviation Regulation No. 13