Title 46ShippingRelease 119-73

§5104 Assignment of load lines

Title 46 › Subtitle Subtitle II— - Vessels and Seamen › Part Part C— - Load Lines of Vessels › Chapter CHAPTER 51— - LOAD LINES › § 5104

Last updated Apr 6, 2026|Official source

Summary

The Secretary must mark ships with load lines that show the least safe distance from the water to the deck that the ship may be loaded to. If the owner asks, the Secretary can set a higher (safer) distance. When choosing the load lines, the Secretary must look at the ship’s kind and use, where it will sail, and any international rules the U.S. follows. Ships with load lines set before January 1, 1986 can keep them unless the Secretary finds a big change that needs new lines. A ship’s minimum freeboard can only be lowered if the ship meets all applicable rules in this chapter. The Secretary may also name milder sea areas and allow lower freeboard there.

Full Legal Text

Title 46, §5104

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(a)The Secretary shall assign load lines for a vessel so that they indicate the minimum safe freeboard to which the vessel may be loaded. However, if the owner requests, the Secretary may assign load lines that result in greater freeboard than the minimum safe freeboard.
(b)In assigning load lines for a vessel, the Secretary shall consider—
(1)the service, type, and character of the vessel;
(2)the geographic area in which the vessel will operate; and
(3)applicable international agreements to which the United States Government is a party.
(c)An existing vessel may retain its load lines assigned before January 1, 1986, unless the Secretary decides that a substantial change in the vessel after those load lines were assigned requires that new load lines be assigned under this chapter.
(d)The minimum freeboard of an existing vessel may be reduced only if the vessel complies with every applicable provision of this chapter.
(e)The Secretary may designate by regulation specific geographic areas that have less severe weather or sea conditions and from which there is adequate time to return to available safe harbors. The Secretary may reduce the minimum freeboard of a vessel operating in these areas.

Legislative History

Notes & Related Subsidiaries

Historical and Revision Notes

Revised section 5104 Source: Section (U.S. Code) 46 App. U.S.C. 86c, 88a. section 5104(a) requires the Secretary to assign load lines indicating the minimum safe freeboard to which a vessel may be loaded. It also authorizes the Secretary to assign a load line that results in a freeboard that is greater than the minimum freeboard, if the owner requests. section 5104(b) sets forth guidelines that the Secretary must consider when assigning load lines on vessels. section 5104(c) allows an existing vessel to retain its load line assigned before January 1, 1986, unless the Secretary decides that a change made in the vessel requires the assignment of a new load line. section 5104(d) is a new provision that requires that a vessel comply with all the provisions of this chapter before the Secretary will consider a reduction in its minimum freeboard. This provision is similar to Article 4(4) of the International Convention on Load Lines. section 5104(e) is a new provision that authorized the Secretary to designate specific geographic areas having relatively non-severe weather or sea conditions and from which there is adequate time to return to safe harbors. section 5104(e) also authorizes the Secretary to reduce the minimum freeboard of vessels operating in these areas.

Regulations

that have been issued under this authority (46 C.F.R. 44) authorize special service load lines for vessels operating not more than 20 nautical miles offshore or between islands in a group.

Reference

Citations & Metadata

Citation

46 U.S.C. § 5104

Title 46Shipping

Last Updated

Apr 6, 2026

Release point: 119-73