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e-CFR data is current as of October 22, 2020

Title 46Chapter ISubchapter GPart 69 → Subpart E


Title 46: Shipping
PART 69—MEASUREMENT OF VESSELS


Subpart E—Simplified Regulatory Measurement System


Contents
§69.201   Purpose.
§69.203   Definitions.
§69.205   Application for measurement services.
§69.207   Measurements.
§69.209   Gross and net register tonnages.
§69.211   Treatment of novel type vessels.

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§69.201   Purpose.

This subpart prescribes the procedures for measuring a vessel under the Simplified Regulatory Measurement System described in 46 U.S.C. chapter 145, subchapter III.

[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG-2011-0522, 81 FR 18732, Mar. 31, 2016]

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§69.203   Definitions.

As used in this subpart and in Coast Guard Form CG-5397 under §69.205—

Overall breadth means the horizontal distance taken at the widest part of the hull, excluding rub rails, from the outboard side of the skin (outside planking or plating) on one side of the hull to the outboard side of the skin on the other side of the hull.

Overall depth means the vertical distance taken at or near midships from a line drawn horizontally through the uppermost edges of the skin (outside planking or plating) at the sides of the hull (excluding the cap rail, trunks, cabins, and deckhouses) to the outboard face of the bottom skin of the hull, excluding the keel. For a vessel that is designed for sailing and has a keel faired to the hull, the keel is included in “overall depth” if the distance to the bottom skin of the hull cannot be determined reasonably.

Overall length means the horizontal distance between the outboard side of the foremost part of the stem and the outboard side of the aftermost part of the stern, excluding rudders, outboard motor brackets, and other similar fittings and attachments.

Registered breadth means—

(a) For a single-hull vessel, the vessel's overall breadth; and

(b) For a multi-hull vessel, the horizontal distance taken at the widest part of the complete vessel between the outboard side of the skin (outside planking or plating) on the outboardmost side of one of the outboardmost hulls to the outboard side of the skin on the outboardmost side of the other outboardmost hull, excluding rubrails.

Registered depth means—

(a) For a single-hull vessel, the vessel's overall depth; and

(b) For a multi-hull vessel, the overall depth of the deepest hull.

Registered length means—

(a) For a single-hull vessel, the vessel's overall length; and

(b) For a multi-hull vessel, the horizontal distance between the outboard side of the foremost part of the stem of the foremost hull and the outboard side of the aftermost part of the stern of the aftermost hull, excluding fittings or attachments.

Vessel designed for sailing means a vessel which has the fine lines of a sailing craft and is capable of being propelled by sail, whether or not the vessel is equipped with an auxiliary motor, a decorative sail, or a sail designed only to steady the vessel.

[CGD 87-015b, 54 FR 37657, Sept. 12, 1989; 54 FR 40240, Sept. 29, 1989; USCG-1999-6216, 64 FR 53225, Oct. 1, 1999]

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§69.205   Application for measurement services.

(a) Except as noted under paragraph (c) of this section, to apply for measurement under this subpart, the vessel owner must complete an Application for Simplified Measurement (form CG-5397). If the vessel is documented, or intended to be documented, as a vessel of the United States under part 67 of this chapter, the vessel owner must submit the application form to the National Vessel Documentation Center. Otherwise, the form is not further processed, but may be retained, at the vessel owner's option, as evidence of the tonnage measurement under this part.

(b) The Application for Simplified Measurement (form CG-5397) must include the following information:

(1) Vessel's name and number (e.g., official number, International Maritime Organization (IMO) number, or Coast Guard number).

(2) Vessel hull identification number or other number assigned by builder.

(3) Hull material.

(4) Hull shape.

(5) Overall length, breadth, and depth of vessel and each of the vessel's individual hulls.

(6) Location of any propelling machinery (e.g., inside or outside of the hull).

(7) Dimensions of the principal deck structure, if its volume exceeds the volume of the hull.

(c) At the vessel owner's option, a Builder's Certification and First Transfer of Title (form CG-1261), which includes the same information specified in paragraph (b) of this section may be submitted to the National Vessel Documentation Center instead of the Application for Simplified Measurement for a vessel that is documented, or intended to be documented, as a vessel of the United States under part 67 of this chapter.

[USCG-2011-0522, 81 FR 18733, Mar. 31, 2016]

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§69.207   Measurements.

(a) All lengths and depths must be measured in a vertical plane at centerline and breadths must be measured in a line at right angles to that plane. All dimensions must be expressed in feet and inches to the nearest inch or in feet and tenths of a foot to the nearest tenth of a foot.

(b) For a multi-hull vessel, each hull must be measured separately for overall length, breadth, and depth and the vessel as a whole must be measured for registered length, breadth, and depth.

(c) The Coast Guard may verify dimensions of vessels measured under this subpart.

[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG-2011-0522, 81 FR 18734, Mar. 31, 2016]

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§69.209   Gross and net register tonnages.

(a) Gross register tonnage. (1) Except as in paragraphs (a)(2) through (a)(5) of this section, the gross register tonnage of a vessel designed for sailing is one-half of the product of its overall length, overall breadth, and overall depth (LBD) divided by one hundred (i.e., 0.50 LBD/100), and the gross register tonnage of a vessel not designed for sailing is 0.67 LBD/100.

(2) The gross tonnage of a vessel with a hull that approximates in shape a rectangular geometric solid (barge-shape) is 0.84 LBD/100.

(3) The gross tonnage of a multi-hull vessel is the sum of all the hulls as calculated under this section.

(4) If the volume of the principal deck structure of a vessel is as large as, or larger than, the volume of the vessel's hull, the volume of the principal deck structure in tons of 100 cubic feet is added to the tonnage of the hull to establish the vessel's gross tonnage. The volume of the principal deck structure of a vessel is determined by the product of its average dimensions.

(5) If the overall depth of a vessel designed for sailing includes the keel, only 75 percent of that depth is used for gross tonnage calculations.

(b) Net register tonnage. (1) For a vessel having propelling machinery in its hull—

(i) The net register tonnage is 90 percent of its gross register tonnage, if it is a vessel designed for sailing; or

(ii) The net register tonnage is 80 percent of its gross register tonnage, if it is not a vessel designed for sailing.

(2) For a vessel having no propelling machinery in its hull, the net register tonnage is the same as its gross register tonnage.

(c) Certification of measurement. For a vessel that is documented as a vessel of the United States under part 67 of this chapter, the vessel's Certificate of Documentation serves as evidence of measurement under this subpart. For all other vessels, a completed Application for Simplified Measurement (form CG-5397) serves as evidence of the tonnage measurement under this part.

[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 97-057, 62 FR 51045, Sept. 30, 1997; USCG-2011-0522, 81 FR 18734, Mar. 31, 2016]

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§69.211   Treatment of novel type vessels.

Refer questions regarding the application of the tonnage measurement rules under this subpart to novel type vessels to the Commandant.

[USCG-2011-0522, 81 FR 18734, Mar. 31, 2016]

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