§10.203. Requirement to hold a TWIC and a Merchant Mariner Credential. — Inbound Citations

(a) A person may not employ or engage an individual, and an individual may not serve, in a position in which an individual is required by law or regulation to hold a Transportation Worker Identification Credential (TWIC) and/or Merchant Mariner Credential (MMC), unless the individual holds all credentials required, as appropriate, authorizing service in the capacity in which the individual is engaged or employed, and the individual serves within any restrictions placed on the credential. An individual holding an active MMC issued by the Coast Guard must also hold a valid TWIC issued by the Transportation Security Administration unless the individual is exempt under § 10.203(b)(1) of this subchapter.

(a) Every seafarer referred to in this section, when required, must produce a valid MMC with all applicable rating endorsements for the position sought, a valid TWIC unless the mariner is exempt under § 10.203(b)(2) of this subchapter, and a valid medical certificate, to the Master of the vessel at the time of employment or before signing Articles of Agreement. Seafarers who do not possess one of these credentials may be employed at a foreign port or place within the limitations specified in § 15.720.