[Code of Federal Regulations]
[Title 46, Volume 1]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR34.15-20]

[Page 460-461]
 
                           TITLE 46--SHIPPING
 
         CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
 
PART 34_FIREFIGHTING EQUIPMENT--Table of Contents
 
       Subpart 34.15_Carbon Dioxide Extinguishing Systems, Details
 
Sec. 34.15-20  Carbon dioxide storage--T/ALL.

    (a) Except as provided in paragraph (b) of this section, the 
cylinders shall be located outside the spaces protected, and shall not 
be located in any space that might be cut off or made inaccessible in 
the event of a fire in any of the spaces protected.
    (b) Systems of the type indicated in Sec. 34.15-5(d), consisting of 
not more than 300 pounds of carbon dioxide, may have the cylinders 
located within the space protected. If the cylinder stowage is within 
the space protected, the system shall be arranged in an approved manner 
to be automatically operated by a heat actuator within the space in 
addition to the regular remote and local controls.
    (c) The space containing the cylinders shall be properly ventilated 
and designed to preclude an anticipated ambient temperature in excess of 
130 degrees F.
    (d) Cylinders shall be securely fastened and supported, and where 
necessary, protected against injury.
    (e) Cylinders shall be so mounted as to be readily accessible and 
capable of easy removal for recharging and inspection. Provisions shall 
be available for weighing the cylinders.
    (f) Where subject to moisture, cylinders shall be so installed as to 
provide a space of at least 2 inches between the flooring and the bottom 
of the cylinders.

[[Page 461]]

    (g) Cylinders shall be mounted in an upright position or inclined 
not more than 30 degrees from the vertical. However, cylinders which are 
fitted with flexible or bent siphon tubes may be inclined not more than 
80 degrees from the vertical.
    (h) Where check valves are not fitted on each independent cylinder 
discharge, plugs or caps shall be provided for closing outlets when 
cylinders are removed for inspection or refilling.
    (i) All cylinders used for storing carbon dioxide must be 
fabricated, tested, and marked in accordance with Sec. Sec. 147.60 and 
147.65 of this chapter.

[CGFR 65-50, 30 FR 16694, Dec. 30, 1965, as amended at 53 FR 7748, Mar. 
10, 1988; USCG-1999-6216, 64 FR 53223, Oct. 1, 1999]