Originally Posted by Sergey
... My boat is USCG documented pleasure vessel ...
The Merchant Mariner's Document (MMD), previously called a Z-Card, is a kind of Merchant Mariner Credential previously issued by the United States Coast Guard in accordance with the STCW guidelines, and, until completely phased out, remains one of the standard documents required for all crewmembers of U.S. ships with a Gross Register Tonnage of over 100, and for all vessels required to operate with a licensed Master, regardless of size.
For more information about the NMC's Mariner Licensing and Documentation
program visit USCG National Maritime Center
or the Homeport site at Loading Homeport...
and select Merchant Mariners.
➥ USCG National Maritime Center