46 CFR § 52.05-20 - Radiographic and ultrasonic examination (modifies PW-11 and PW-41.1).

---
identifier: "/us/cfr/t46/s52.05-20"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 52.05-20 - Radiographic and ultrasonic examination (modifies PW-11 and PW-41.1)."
title_number: 46
title_name: "Shipping"
section_number: "52.05-20"
section_name: "Radiographic and ultrasonic examination (modifies PW-11 and PW-41.1)."
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: "2026-04-05"
last_updated: "2026-04-05"
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"
---


# 52.05-20 Radiographic and ultrasonic examination (modifies PW-11 and PW-41.1).

Radiographic and ultrasonic examination of welded joints must be as described in PW-11 of Section I of the ASME BPVC (incorporated by reference; see § 52.01-1). Parts of boilers, fabricated of pipe material such as drums, shells, downcomers, risers, cross pipes, headers, and tubes containing only circumferentially welded butt joints, must be nondestructively examined as required by § 56.95-10 of this subchapter.

[USCG-2003-16630, 73 FR 65162, Oct. 31, 2008]