---
kind: "section"
citation: "46 C.F.R. § 5.40"
title: "46"
number: "5.40"
heading: "Credential and merchant mariner credential."
url: "https://uscodex.org/cfr/46/5.40"
---

# §5.40. Credential and merchant mariner credential.


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](/cfr/46/part10.md). 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.

## Notes

### Amendments

[USCG-2006-24371, 74 FR 11214, Mar. 16, 2009]

### Authority

Authority: 46 U.S.C. 2103, 7101, 7301, 7701; DHS Delegation 00170.1, Revision No. 01.2.

### Source

Source: CGD 82-002, 50 FR 32184, Aug. 9, 1985, unless otherwise noted.

### Amendments

[USCG-2006-24371, 74 FR 11214, Mar. 16, 2009]