[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: 33CFR154.822]

[Page 318]
 
                TITLE 33--NAVIGATION AND NAVIGABLE WATERS
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 154--FACILITIES TRANSFERRING OIL OR HAZARDOUS MATERIAL IN BULK--Table 
of Contents
 
                    Subpart E--Vapor Control Systems
 
Sec. 154.822  Detonation arresters, flame arresters, and flame screens.

    (a) Each detonation arrester required by this part must:
    (1) Be capable of arresting a detonation from either side of the 
device; and
    (2) Be acceptable to the Commandant (G-MSO). A detonation arrester 
designed, built, and tested in accordance with appendix A of this part 
will be acceptable to the Commandant (G-MSO).
    (b) Each flame arrester required by this part must be acceptable to 
the Commandant (G-MSO). A flame arrester designed, built, and tested in 
accordance with appendix B of this part will be acceptable to the 
Commandant (G-MSO).
    (c) Each flame screen required by this part must be either a single 
screen of corrosion resistant wire of at least 30 by 30 mesh, or two 
screens, both of corrosion resistant wire, of at least 20 by 20 mesh, 
spaced not less than 12.7 millimeters (\1/2\ in.) or more than 38.1 
millimeters (1\1/2\ in.) apart.

[CGD 88-102, 55 FR 25429, June 21, 1990; 55 FR 39270, Sept. 26, 1990, as 
amended by CGD 96-026, 61 FR 33666, June 28, 1996; USCG-2002-12471, 67 
FR 41333, June 18, 2002]