# 46 C.F.R. § 4.03-2 (2026): Serious marine incident

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_2

## Section

- **Citation:** 46 C.F.R. § 4.03-2 (2026)
- **Heading:** Serious marine incident
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 46 CFR: Shipping / Chapter I / Part 4 / Subpart 4.03 / § 4.03-2: § 4.03-2   Serious marine incident.

## Text

The term serious marine incident includes the following events involving a vessel in commercial service, floating OCS facility, or MODU as described in § 4.03-1(1) and (2): (a) Any marine casualty or accident as defined in § 4.03-1 which is required by § 4.05-1 to be reported to the Coast Guard and which results in any of the following: (1) One or more deaths; (2) An injury to a crewmember, passenger, or other person which requires professional medical treatment beyond first aid, and, in the case of a person employed on board a vessel in commercial service, floating OCS facility, or MODU, which renders the individual unfit to perform routine vessel duties; (3) Damage to property, as defined in § 4.05-1(a)(7) of this part, in excess of $200,000; (4) Actual or constructive total loss of any vessel or MODU subject to inspection under 46 U.S.C. 3301; or (5) Actual or constructive total loss of any self-propelled vessel, not subject to inspection under 46 U.S.C. 3301, of 100 gross tons or more. (b) A discharge of oil of 10,000 gallons or more into the navigable waters of the United States, as defined in 33 U.S.C. 1321, whether or not resulting from a marine casualty. (c) A discharge of a reportable quantity of a hazardous substance into the navigable waters of the United States, or a release of a reportable quantity of a hazardous substance into the environment of the United States, whether or not resulting from a marine casualty. [CGD 86-067, 53 FR 47077, Nov. 21, 1988, as amended by CGD 97-057, 62 FR 51041, Sept. 30, 1997; USCG-2016-0748, 83 FR 11902, Mar. 19, 2018; USCG-2013-1057, 91 FR 39485, June 30, 2026]

## Nearby sections

- [46 C.F.R. § 4.03-0 (2026) § 4.03-0   Definitions that apply to this subpart.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_0.md)
- [46 C.F.R. § 4.03-1 (2026) § 4.03-1   Marine casualty or accident.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_1.md)
- [46 C.F.R. § 4.03-2 (2026) § 4.03-2   Serious marine incident.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_2.md)
- [46 C.F.R. § 4.03-4 (2026) § 4.03-4   Individual directly involved in a serious marine incident.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_4.md)
- [46 C.F.R. § 4.03-5 (2026) § 4.03-5   Medical facility.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_5.md)
- [46 C.F.R. § 4.03-6 (2026) § 4.03-6   Qualified medical personnel.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_6.md)
- [46 C.F.R. § 4.03-7 (2026) § 4.03-7   Chemical test.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_7.md)
- [46 C.F.R. § 4.03-10 (2026) § 4.03-10   Party in interest.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_10.md)
- [46 C.F.R. § 4.03-15 (2026) § 4.03-15   Commandant.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_15.md)
- [46 C.F.R. § 4.03-20 (2026) § 4.03-20   Coast Guard district.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_20.md)
- [46 C.F.R. § 4.03-25 (2026) § 4.03-25   District Commander.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_25.md)
- [46 C.F.R. § 4.03-30 (2026) § 4.03-30   Investigating officer.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_30.md)
- [46 C.F.R. § 4.03-35 (2026) § 4.03-35   Nuclear vessel.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_35.md)
- [46 C.F.R. § 4.03-40 (2026) § 4.03-40   Public vessels.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_40.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T46_P4_S4_03_2. Check the current official text before relying on it. Not legal advice.