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46 CFR § 32.56-25 - Category A machinery spaces: Windows and port lights—T/ALL.

---
identifier: "/us/cfr/t46/s32.56-25"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 32.56-25 - Category A machinery spaces: Windows and port lights—T/ALL."
title_number: 46
title_name: "Shipping"
section_number: "32.56-25"
section_name: "Category A machinery spaces: Windows and port lights—T/ALL."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "D"
subchapter_name: "TANK VESSELS"
part_number: "32"
part_name: "SPECIAL EQUIPMENT, MACHINERY, AND HULL REQUIREMENTS"
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. 2103, 3306, 3703, 3719; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.4; Subpart 32.59 also issued under the authority of Sec. 4109, Pub. L. 101-380, 104 Stat. 515."
regulatory_source: "CGFR 65-50, 30 FR 16671, Dec. 30, 1965, unless otherwise noted."
cfr_part: "32"
---

# 32.56-25 Category A machinery spaces: Windows and port lights—T/ALL.

(a) Except as provided in paragraph (b) of this section and subpart 111.105, of this chapter, boundaries of category A machinery spaces and boundaries of cargo pumprooms must not be pierced for windows or portlights.

(b) Skylights that can be closed from outside the spaces they serve may be fitted in boundaries of category A machinery spaces.

[CGD 74-127, 41 FR 3844, Jan. 26, 1976, as amended by CGD 74-125A, 47 FR 15230, Apr. 8, 1982]