46 C.F.R. § 113.05-7

(a) Communication, alarm system, control, and monitoring equipment, with the exception of fire and smoke detection and alarm systems, must meet the environmental tests of—

(1) Section 4-9-9, Table 1, of ABS Marine Vessel Rules (incorporated by reference; see § 110.10-1 of this subchapter) or the applicable ENV category of Lloyd's Register Type Approval System—Test Specification Number 1 (incorporated by reference; see § 110.10-1 of this subchapter); and

(2) IEC 60533:2015 (incorporated by reference; see § 110.10-1 of this subchapter) as appropriate.

(b) Components of smoke detection and alarm systems must be tested in accordance with 46 CFR 161.002.