46 CFR § 62.25-5 - All control systems.

---
identifier: "/us/cfr/t46/s62.25-5"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 62.25-5 - All control systems."
title_number: 46
title_name: "Shipping"
section_number: "62.25-5"
section_name: "All control systems."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "F"
subchapter_name: "MARINE ENGINEERING"
part_number: "62"
part_name: "VITAL SYSTEM AUTOMATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3306, 3703, 8105; sec. 617, Pub. L. 111-281, 124 Stat. 2905; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGD 81-030, 53 FR 17838, May 18, 1988, unless otherwise noted."
cfr_part: "62"
---


# 62.25-5 All control systems.

(a) Local and remote starting for any propulsion engine or turbine equipped with a jacking or turning gear must be prevented while the turning gear is engaged.

(b) Automatic control systems must be stable over the entire range of normal operation.

(c) Inadvertent grounding of an electrical or electronic safety control system must not cause safety control operation or safety control bypassing.

[CGD 81-030, 53 FR 17838, May 18, 1988, as amended by USCG-2003-16630, 73 FR 65189, Oct. 31, 2008]