The STCW Code's table B-I/2 ('List of certificates or documentary evidence required under the STCW Convention') identifies all certificates or documentary evidence described in the Convention which authorize the holder to serve in certain functions onboard.

The amendments are intended to provide better guidance to Parties, Administrations, port State control authorities, recognized organizations and other relevant parties by updating the list of all certificates or documentary evidence described in the Convention which authorize the holder to serve in certain capacities, perform certain duties, functions or be assigned certain responsibilities onboard ships,

...IMO explained.

The draft amendments will be for submitted to the MSC 101, due in June 2019, for approval and adoption.