Title 46, ShippingRelease 119-110

§4312 Engine Cut-off Switches

Title 46 › Subtitle II — Vessels and Seamen › Part B — Inspection and Regulation of Vessels › CHAPTER 43 — RECREATIONAL VESSELS › § 4312

Last updated Sep 22, 2026|Official source

Summary

Manufacturers, distributors, and dealers who put engines and starting controls on small recreational boats must install an engine cut-off switch and a safety lanyard that meet American Boat and Yacht Council Standard A–33 as it existed on the day Public Law 115–282 was passed. A person driving one of these boats must use the lanyard when the boat is on plane or going faster than displacement speed, unless the main helm is inside an enclosed cabin or the boat does not have and was not required to have a cut-off switch. The Coast Guard may run a safety campaign about cut-off switches through the National Boating Safety Advisory Committee. Within 90 days, the Coast Guard must send the A–33 standard (as of that law’s enactment) to certain congressional committees, the Coast Guard design office, and the National Archives, and keep it on file for public inspection. Short definitions: covered recreational vessel = under 26 feet overall and able to make 115 pounds or more of static thrust; dealer = sells to end buyers; distributor = sells for resale; manufacturer = makes or imports boats; propulsion machinery = self-contained engines like inboard, outboard, or sterndrive; static thrust = push made while the boat is not moving.

Full Legal Text

Title 46, §4312

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(a)Installation Requirement.—
A manufacturer, distributor, or dealer that installs propulsion machinery and associated starting controls on a covered recreational vessel shall equip such vessel with an engine cut-off switch and engine cut-off switch link that meet American Boat and Yacht Council Standard A–33, as in effect on the date of the enactment of the Frank LoBiondo Coast Guard Authorization Act of 2018 (Public Law 115–282).
(b)Use Requirement.—
(1)In general.—
An individual operating a covered recreational vessel shall use an engine cut-off switch link while operating on plane or above displacement speed.
(2)Exceptions.—
The requirement under paragraph (1) shall not apply if—
(A)the main helm of the covered vessel is installed within an enclosed cabin; or
(B)the vessel does not have an engine cut-off switch and is not required to have one under subsection (a).
(c)Education on Cut-off Switches.—
The Commandant of the Coast Guard, through the National Boating Safety Advisory Committee established under section 15105, may initiate a boating safety program on the use and benefits of cut-off switches for recreational vessels.
(d)Availability of Standard for Inspection.—
(1)In general.—
Not later than 90 days after the date of the enactment of this section, the Commandant shall transmit American Boat and Yacht Council Standard A–33, as in effect on the date of enactment of the Frank LoBiondo Coast Guard Authorization Act of 2018 (Public Law 115–282), to—
(A)the Committee on Transportation and Infrastructure of the House of Representatives;
(B)the Committee on Commerce, Science, and Transportation of the Senate; and
(C)the Coast Guard Office of Design and Engineering Standards; and
(D)the National Archives and Records Administration.
(2)Availability.—
The standard submitted under paragraph (1) shall be kept on file and available for public inspection at such Coast Guard office and the National Archives and Records Administration.
(e)Definitions.—
In this section: (1) Covered recreational vessel.—
(2)Dealer.—
The term “dealer” means any person who is engaged in the sale and distribution of recreational vessels or associated equipment to purchasers whom the seller in good faith believes to be purchasing any such vessel or associated equipment for purposes other than resale.
(3)Distributor.— (4) Manufacturer.—
The term “distributor” means any person engaged in the sale and distribution of recreational vessels and associated equipment for the purposes of resale.
(5)Propulsion machinery.—
The term “propulsion machinery” means a self-contained propulsion system, and includes, but is not limited to, inboard engines, outboard motors, and sterndrive engines.
(6)Static thrust.—
The term “static thrust” means the forward or backwards thrust developed by propulsion machinery while stationary.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

References in Text

The date of enactment of the Frank LoBiondo Coast Guard Authorization Act of 2018, referred to in subsecs. (a) and (d)(1), is the date of enactment of Pub. L. 115–282, which was approved Dec. 4, 2018. The date of the enactment of this section, referred to in subsec. (c)(1), is the date of enactment of Pub. L. 115–282, which was approved Dec. 4, 2018.

Amendments

2021—Pub. L. 116–283, § 8507(a)(2), substituted “Frank LoBiondo Coast Guard Authorization Act of 2018 (Public Law 115–282)” for “Coast Guard Authorization Act of 2017” in two places. Subsecs. (b) to (e). Pub. L. 116–283, § 8316(a), added subsec. (b) and redesignated former subsecs. (b) to (d) as (c) to (e), respectively.

Statutory Notes and Related Subsidiaries

Effective Date

of 2021 AmendmentAmendment by Pub. L. 116–283 effective 90 days after Jan. 1, 2021, unless the Commandant of the Coast Guard, prior to the date that is 90 days after Jan. 1, 2021, determines that the use requirement enacted in section 8316(a) of Pub. L. 116–283 (amending this section) would not promote recreational boating safety. See section 8316(c) of Pub. L. 116–283, set out as a note under section 4311 of this title.

Effective Date

Pub. L. 115–282, title V, § 503(c), Dec. 4, 2018, 132 Stat. 4271, provided that: “Section 4312 of title 46, United States Code, as amended [probably should be “enacted”] by this section, shall take effect one year after the date of the enactment of this Act [Dec. 4, 2018].”

Reference

Citations & Metadata

Citation

46 U.S.C. § 4312

Title 46, Shipping

Last Updated

Sep 22, 2026

Release point: 119-110