Attached to the seafarer's service account book: it should be valid for a long time, but the crew also has the same deduction system as the driver's license, with a score of 15 per natural year.
Professional qualification certificate: it seems that there is no such certificate on board. If it refers to the seafarer's certificate of competency, it is valid for five years. If there is no job promotion due, you need to update your knowledge and get a new certificate.
Certificate of basic safety training for inland river ship crew: This certificate is valid for five years. Before the expiration, you will attend the training and change the certificate.
No annual review is required.