[Code of Federal Regulations] [Title 33, Volume 2] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR149.491] [Page 210] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 149--DESIGN, CONSTRUCTION, AND EQUIPMENT--Table of Contents Subpart D--Safety Equipment Sec. 149.491 Fire detection and alarm systems. (a) Each PPC must have the following fire detection systems that activate the general alarm system: (1) An ionization type automatic smoke detection system in each sleeping space. (2) A combination fixed-temperature and rate-of-rise heat detector system in each non-sleeping space that does not have an automatic fire extinguishing system unless the space is subject to a 15 F or greater per minute rate of rise. (3) A fixed-temperature detector system in each nonsleeping space that does not have an automatic fire extinguishing system and that is subject to a 15 F or greater per minute rate of rise. (b) To the extent practicable, materials in each item of equipment required by this section must have resistance to the adverse effects of the marine environment. Portable and Semiportable Fire Fighting Equipment