CFR›Title 46›Chapter I›46 CFR Part 181 Citation46 CFR Part 181ContainsSubparts Subpart A–Subpart FCorpusDaily eCFRDisplayed edition2026-08-21Last updated2026-08-21 PART 181—FIRE PROTECTION EQUIPMENT Subparts Subpart A Subpart A—General Provisions Subpart B Subpart B [Reserved] Subpart C Subpart C—Fire Main System Subpart D Subpart D—Fixed Fire Extinguishing and Detection Systems Subpart E Subpart E—Portable Fire Extinguishers Subpart F Subpart F—Additional Equipment Authority46 U.S.C. 2103, 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation 00170.1, Revision No. 01.4.SourceCGD 85-080, 61 FR 982, Jan. 10, 1996, unless otherwise noted.