CFR > Title 46 > Chapter I > Subchapter D > Part 31 > Subpart 31.35 CFR > Title 46 > Chapter I > Subchapter D > Part 31 > Subpart 31.35 – Electrical Engineering Current as of: 2024 | Check for updates | Other versions § 31.35-1 Electrical installations, lighting and power equipment, batteries, etc.–TB/ALL § 31.35-5 Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.–TB/ALL