[Code of Federal Regulations] [Title 46, Volume 7] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR182.530] [Page 284] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 182_MACHINERY INSTALLATION--Table of Contents Subpart E_Bilge and Ballast Systems Sec. 182.530 Bilge high level alarms. (a) On a vessel of at least 7.9 meters (26 feet) in length, a visual and audible alarm must be provided at the operating station to indicate a high water level in each of the following normally unmanned spaces: (1) A space with a through-hull fitting below the deepest load waterline, such as a lazarette; (2) A machinery space bilge, bilge well, shaft alley bilge, or other spaces subject to flooding from sea water piping within the space; and (3) A space with a non-watertight closure, such as a space with a non-watertight hatch on the main deck. (b) Vessels constructed of wood must, in addition to paragraph (a), provide bilge level alarms in all watertight compartments except small buoyancy chambers. (c) A visual indicator must be provided at the operating station to indicate when any automatic bilge pump is operating.