1625-0032 Stat/Authority

46 CFR 115.615 (up to date as of 4/11/2025)
Underwater Survey in Lieu of Drydocking (UWILD).

46 CFR 115.615 (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 K —Small Passenger Vessels Carrying More Than 150 Passengers or with Overnight
Accommodations for More Than 49 Passengers
Part 115 —Inspection and Certification
Subpart F —Hull and Tailshaft Examinations
Authority: 33 U.S.C. 1321(j); 46 U.S.C. 2103, 3205, 3306, 3307; 49 U.S.C. App. 1804; E.O. 11735, 38 FR 21243, 3 CFR, 1971-1975
Comp., p. 277; DHS Delegation 00170.1, Revision No. 01.4.
Source: CGD 85-080, 61 FR 892, Jan. 10, 1996, unless otherwise noted.

§ 115.615 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 § 115.600(b) or (c) of this part.
(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 condition of the vessel, including the anticipated draft of the vessel at the time of survey;
(6) A description of the hull protection system; and
(7) The name and qualifications of any third party examiner.
(c) If your vessel is 15 years old or older, the cognizant 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;
(2) Your application includes the information in paragraphs (b)(1) through (b)(7) of this section; and

46 CFR 115.615(c)(2) (enhanced display)

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46 CFR 115.615 (up to date as of 4/11/2025)
Underwater Survey in Lieu of Drydocking (UWILD).

46 CFR 115.615(c)(3)

(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 this drydock examination required by paragraph (c)(3) of this section, the OCMI 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 District Commander for cognizant review.
[USCG-2000-6858, 67 FR 21080, Apr. 29, 2002]

46 CFR 115.615(d) (enhanced display)

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