46 CFR § 108.703 - Self-contained breathing apparatus.
---
identifier: "/us/cfr/t46/s108.703"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 108.703 - Self-contained breathing apparatus."
title_number: 46
title_name: "Shipping"
section_number: "108.703"
section_name: "Self-contained breathing apparatus."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "I-A"
subchapter_name: "A—MOBILE OFFSHORE DRILLING UNITS"
part_number: "108"
part_name: "DESIGN AND EQUIPMENT"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "43 U.S.C. 1333; 46 U.S.C. 3102, 3306; DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGD 73-251, 43 FR 56808, Dec. 4, 1978, unless otherwise noted."
cfr_part: "108"
---
# 108.703 Self-contained breathing apparatus.
(a) Each unit must be equipped with a self-contained breathing apparatus described in § 108.497(a) to use as protection against gas leaking from a refrigeration unit if it is equipped with any refrigeration unit using—
(1) Ammonia to refrigerate any space with a volume of more than 20 cubic feet; or
(2) Fluorocarbons to refrigerate any space with a volume of more than 1000 cubic feet.
(b) The self-contained breathing apparatus required in § 108.497 may be used for this purpose.
[CGD 73-251, 43 FR 56808, Dec. 4, 1978, as amended by CGD 86-036, 57 FR 48326, Oct. 23, 1992]