You will need to lodge a formal application using the Seafarer form 419.
Lodge from within Australia
You will need to fill out the Seafarer form 419, attach all required supporting documents and lodge it at a participating Australia Post retail outlet.
You will need to pay the fees for your application at the Post office at the time of lodgement.
Lodge from overseas
You will need to ﬁll out the Seafarer form 419, attach all required supporting documents including a colour passport-style photograph and send the paperwork to us by email to STCW.email@example.com. When we receive your email we will let you know how to pay the fee for your application via AMSA online portal.
We will complete an authenticity check with your issuing administration to determine the validity of the foreign certificate you have submitted with your application.