General requirements and classifications for members of deck departments
46 U.S.C. § 7306
in effect(a) In General.—The Secretary may issue a merchant mariner credential, to members of the deck department in the following classes:(1) Able Seaman-Unlimited. (2) Able Seaman-Limited. (3) Able Seaman-Special. (4) Able Seaman-Offshore Supply Vessels. (5) Able Seaman-Sail. (6) Able Seaman-Fishing Industry. (7) Ordinary Seaman.
(b) Classification of Credentials.—The Secretary may classify the merchant mariner credential issued under subsection (a) based on—(1) the tonnage and means of propulsion of vessels; (2) the waters on which vessels are to be operated; or (3) other appropriate standards.
(c) Qualifications.—To qualify for a credential under this section, an applicant shall provide satisfactory proof that the applicant—(1) is at least 18 years of age; (2) has the service required by the applicable section of this part; (3) is qualified professionally as demonstrated by an applicable examination or educational requirements; (4) is qualified as to sight, hearing, and physical condition to perform the seafarer’s duties; and (5) has satisfied any additional requirements established by the Secretary, including career patterns and service appropriate to the particular service, industry, or job functions the individual is engaged.
Source: OLRC USLMURL: https://uscode.house.gov/download/releasepoints/us/pl/119/95/xml_usc46@119-95.zipFetched: 6/7/2026
