46 CFR 78.47-53

§ 78.47-53 Automatic ventilation dampers.

United States · 46 CFR — Shipping · Status: effective

Cite this

Citation: 46 CFR 78.47-53, § 78.47-53 Automatic ventilation dampers, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/226157
Permanent ID: ys:prov:226157@1
SHA-256: 88c4e40d59d71b12df8956d97307ced398a19e1686a938d21f3fcaa5a009a522

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Full text

(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]

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.