46 CFR 78.47-10 - Manual alarm boxes.

§ 78.47-10 Manual alarm boxes.

(a) In all new installations, manual alarm boxes shall be clearly and permanently marked “IN CASE OF FIRE BREAK GLASS.” Existing boxes not so marked with the same or equivalent wording, shall be identified either on the box or adjacent bulkhead in at least 1/2 inch letters “IN CASE OF FIRE BREAK GLASS.” All manual alarm boxes shall be numbered in red on the adjacent bulkhead with at least 1/2 inch figures. The number shall agree with the number of the zone.

(b) [Reserved]

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
Presidential Documents

Executive Order ... 12234

Executive Order ... 12777

Title 46 published on 2015-12-02

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 46 CFR Part 78 after this date.

  • 2016-07-22; vol. 81 # 141 - Friday, July 22, 2016
    1. 81 FR 48220 - Harmonization of Standards for Fire Protection, Detection, and Extinguishing Equipment
      GPO FDSys XML | Text
      DEPARTMENT OF HOMELAND SECURITY, Coast Guard
      Final rule.
      This final rule is effective August 22, 2016. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register on August 22, 2016.
      33 CFR Parts 140, 145, 148, and 149