46 CFR § 111.05-9 - Masts.

Each nonmetallic mast and topmast must have a lightning-ground conductor in accordance with section 10 of IEC 60092-401:1980 (incorporated by reference; see § 110.10-1 of this subchapter).

[USCG-2020-0075, 88 FR 16360, Mar. 16, 2023]

System Grounding