# 33 CFR § 165.3: Definitions

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-33-165.3

## Section

- **Citation:** 33 CFR § 165.3
- **Heading:** Definitions
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 33—Navigation and Navigable Waters > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER P—PORTS AND WATERWAYS SAFETY > PART 165—REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS > Subpart A—General

## Text

The following definitions apply to this part:
Credential means any or all of the following:
(1) Merchant mariner's document.
(2) Merchant mariner's license.
(3) STCW endorsement.
(4) Certificate of registry.
(5) Merchant mariner credential.
Merchant mariner credential or MMC means the credential issued by the Coast Guard under 46 CFR part 10. It combines the individual merchant mariner's document, license, and certificate of registry enumerated in 46 U.S.C. subtitle II part E as well as the STCW endorsement into a single credential that serves as the mariner's qualification document, certificate of identification, and certificate of service.
[USCG-2006-24371, 74 FR 11213, Mar. 16, 2009]

## Nearby sections

- [33 CFR § 165.1 § 165.1 Purpose of part.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.1.md)
- [33 CFR § 165.3 § 165.3 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.3.md)
- [33 CFR § 165.5 § 165.5 Establishment procedures.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.5.md)
- [33 CFR § 165.7 § 165.7 Notification.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.7.md)
- [33 CFR § 165.8 § 165.8 Geographic coordinates.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.8.md)
- [33 CFR § 165.9 § 165.9 Geographic application of limited and controlled access areas and regulated navigation areas.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.9.md)
- [33 CFR § 165.10 § 165.10 Regulated navigation areas.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.10.md)
- [33 CFR § 165.11 § 165.11 Vessel operating requirements (regulations).](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.11.md)
- [33 CFR § 165.13 § 165.13 General regulations.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.13.md)
- [33 CFR § 165.20 § 165.20 Safety zones.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.20.md)
- [33 CFR § 165.23 § 165.23 General regulations.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.23.md)
- [33 CFR § 165.30 § 165.30 Security zones.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.30.md)
- [33 CFR § 165.33 § 165.33 General regulations.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.33.md)
- [33 CFR § 165.40 § 165.40 Restricted waterfront areas.](https://www.frixlaw.com/law-library/statutes/ecfr-33-165.40.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-33-165.3. Check the current official text before relying on it. Not legal advice.