46 CFR § 52.25-5 - Miniature boilers (modifies PMB-1 through PMB-21).

---
identifier: "/us/cfr/t46/s52.25-5"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 52.25-5 - Miniature boilers (modifies PMB-1 through PMB-21)."
title_number: 46
title_name: "Shipping"
section_number: "52.25-5"
section_name: "Miniature boilers (modifies PMB-1 through PMB-21)."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "F"
subchapter_name: "MARINE ENGINEERING"
part_number: "52"
part_name: "POWER BOILERS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
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."
regulatory_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."
cfr_part: "52"
---


# 52.25-5 Miniature boilers (modifies PMB-1 through PMB-21).

Miniature boilers must meet the requirements in PMB-1 through PMB-21 of Section I of the ASME BPVC (incorporated by reference; see § 52.01-1).

[CGFR 68-82, 33 FR 18815, Dec. 18, 1968, as amended by USCG-2003-16630, 73 FR 65161, Oct. 31, 2008; USCG-2014-0688, 79 FR 58280, Sept. 29, 2014]