---
kind: "section"
citation: "33 C.F.R. § 155.110"
title: "33"
number: "155.110"
heading: "Definitions."
url: "https://uscodex.org/cfr/33/155.110"
---

# §155.110. Definitions.


Except as specifically stated in a section, the definitions in [part 151](/cfr/33/part151.md) of this chapter, except for the word “oil”, and in [part 154](/cfr/33/part154.md) of this chapter, apply to this part. The following definition also applies to this part:

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 11212, Mar. 16, 2009]

### Source

Source: CGD 75-124a, 48 FR 45714, Oct. 6, 1983, unless otherwise noted.

### Authority

Authority: 3 U.S.C. 301 through 303; 33 U.S.C. 1321(j), 1903(b), 2735; 46 U.S.C. 70011; 70034; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.4. Section 155.1020 also issued under section 316 of Pub. L. 114-120. Section 155.480 also issued under section 4110(b) of Pub. L. 101-380.

### Amendments

[USCG-2006-24371, 74 FR 11212, Mar. 16, 2009]