[Code of Federal Regulations] [Title 46, Volume 4] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR131.825] [Page 462] TITLE 46_SHIPPING (This book contains parts 90 to 139) CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 131_OPERATIONS--Table of Contents Subpart H_Markings for Fire Equipment and Emergency Equipment Sec. 131.825 Controls of fire-extinguishing system. Each control cabinet or space containing a valve or manifold for a fire extinguishing system must be distinctly marked in conspicuous red letters at least 50 millimeters (2 inches) high that state the following: ``FIRE APPARATUS FOR [CARBON DIOXIDE] [HALON]''.