(a) The manual operating positions for automatic fire dampers in ventilation ducts passing through main vertical zone bulkheads shall be identified by red day light-reflecting letters at least
1/2 inch high “VENTILATION FIRE DAMPER.” In addition, the open and closed positions shall be similarly marked.
(b) [Reserved]
[CGFR 65-50, 30 FR 16955, Dec. 30, 1965, as amended by CGD 67-87, 32 FR 19181, Dec. 20, 1967]
authority: 33 U.S.C. 1321(j);
46 U.S.C. 2103,
3306,
6101;
49 U.S.C. 5103,
5106; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; Department of Homeland Security Delegation No. 0170.1
source: CGFR 65-50, 30 FR 16955, Dec. 30, 1965, unless otherwise noted.
cite as: 46 CFR 78.47-53