(1) That the certificate was issued by a flag State Administration (in accordance with STCW Regulation 1/2);
(2) that the certificate has been endorsed by the issuing Administration (STCW Convention Article VI and STCW Regulation 1/2); (3) that the certificate has been revalidated where required by STCW (this should be shown by endorsement); and (4) that the certificate is not a forgery, e. g. that it shows the wrong STCW chapter number for the officer’s department, or wrong STCW regulation number for the officer’s capacity, or wrong gross tonnage or engine power, etc.
