1625-0032 Stat/Authority

46 CFR 167.15-33 (up to date as of 4/11/2025)
Underwater Survey in Lieu of Drydocking (UWILD).

46 CFR 167.15-33 (Apr. 11, 2025)

This content is from the eCFR and is authoritative but unofficial.

Title 46 —Shipping
Chapter I —Coast Guard, Department of Homeland Security
Subchapter R —Nautical Schools
Part 167 —Public Nautical School Ships
Subpart 167.15 —Inspections
Authority: 46 U.S.C. 3306, 3307, 6101, 8105; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation 00170.1,
Revision No. 01.4.
Source: CGFR 51-11, 16 FR 3218, Apr. 12, 1951, unless otherwise noted.

Editorial Note: Nomenclature changes to part 167 appear by USCG-2025-0186, 90 FR 12238, Mar. 17, 2025.
§ 167.15-33 Underwater Survey in Lieu of Drydocking (UWILD).
(a) The Officer in Charge, Marine Inspection (OCMI), may approve an underwater survey instead of a drydock
examination at alternating intervals if your vessel is—
(1) Less than 15 years of age;
(2) A steel or aluminum hulled vessel;
(3) Fitted with an effective hull protection system; and
(4) Described in 46 CFR 167.15-30(a)(1) or (2).
(b) For vessels less than 15 years of age, you must submit an application for an underwater survey to the
OCMI at least 90 days before your vessel's next required drydock examination. The application must
include—
(1) The procedure for carrying out the underwater survey;
(2) The time and place of the underwater survey;
(3) The method used to accurately determine the diver's or remotely operated vehicle's (ROV) location
relative to the hull;
(4) The means for examining all through-hull fittings and appurtenances;
(5) The means for taking shaft bearing clearances;
(6) The condition of the vessel, including the anticipated draft of the vessel at the time of survey;
(7) A description of the hull protection system; and
(8) The name and qualifications of any third party examiner.
(c) If your vessel is 15 years old or older, the District Commander, may approve an underwater survey instead
of a drydock examination at alternating intervals. You must submit an application for an underwater
survey to the OCMI at least 90 days before your vessel's next required drydock examination. You may be
allowed this option if—
(1) The vessel is qualified under paragraphs (a)(2) through (4) of this section;

46 CFR 167.15-33(c)(1) (enhanced display)

page 1 of 2

46 CFR 167.15-33 (up to date as of 4/11/2025)
Underwater Survey in Lieu of Drydocking (UWILD).

46 CFR 167.15-33(c)(2)

(2) Your application includes the information in paragraphs (b)(1) through (b)(8) of this section; and
(3) During the vessel's drydock examination, preceding the underwater survey, a complete set of hull
gaugings was taken and they indicated that the vessel was free from appreciable hull deterioration.
(d) After the drydock examination required in paragraph (c)(3) of this section, the Officer in Charge, Marine
Inspection submits a recommendation for future underwater surveys, the results of the hull gauging, and
the results of the Coast Guards' drydock examination results to the cognizant District Commander for
review.
[USCG-2000-6858, 67 FR 21083, Apr. 29, 2002]

46 CFR 167.15-33(d) (enhanced display)

page 2 of 2