CFR›Title 46›Chapter I›Part 31›Subpart 31.35 ContainsSections 31.35-1–31.35-5CorpusDaily eCFRDisplayed edition2026-09-01Last updated2026-09-01 Subpart 31.35—Electrical Engineering Sections 31.35-1 § 31.35-1 Electrical installations, lighting and power equipment, batteries, etc.—TB/ALL. 31.35-5 § 31.35-5 Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.—TB/ALL. Previous 31.30 Subpart 31.30—Marine Engineering Next 31.36 Subpart 31.36—Lifesaving Appliances and Arrangements