---
kind: "section"
citation: "46 C.F.R. § 52.01-10"
title: "46"
number: "52.01-10"
heading: "Automatic controls."
url: "https://uscodex.org/cfr/46/52.01-10"
---

# §52.01-10. Automatic controls.

- (a) Each main boiler must meet the special requirements for automatic safety controls in [§ 62.35-20(a)(1)](/cfr/46/62.35-20.md?p=a-1) of this subchapter.
- (b) Each automatically controlled auxiliary boiler having a heat input rating of less than 12,500,000 Btu/hr. (3.66 megawatts) must meet the requirements of [part 63](/cfr/46/part63.md) of this subchapter.
- (c) **Each automatically controlled auxiliary boiler with a heat input rating of 12,500,000 Btu/hr.** (3.66 megawatts) or above, must meet the requirements for automatic safety controls in [part 62](/cfr/46/part62.md) of this subchapter.

## Notes

### Amendments

[CGFR 68-82, 33 FR 18815, Dec. 18, 1968, as amended by CGD 81-030, 53 FR 17837, May 18, 1988; CGD 88-057, 55 FR 24236, June 15, 1990]

### Authority

Authority: 46 U.S.C. 3306, 3307, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3.

### Source

Source: CGFR 68-82, 33 FR 18815, Dec. 18, 1968, as amended by USCG-2020-0634, 89 FR 50095, June 12, 2024, unless otherwise noted.

### Amendments

[CGFR 68-82, 33 FR 18815, Dec. 18, 1968, as amended by CGD 81-030, 53 FR 17837, May 18, 1988; CGD 88-057, 55 FR 24236, June 15, 1990]