Seafarer documentsCertificates and qualifications

Professional Qualification Evidence – Ship’s Medical Doctor

  • MLC A4.1
  • Full entry
  • Checked 6 October 2026
Document type
Medical professional qualification
Validity
As shown on the issued document
Contents3

1 What it covers

Medical education and professional practice credentials establish doctor qualification; this family is not a single international ship-doctor certificate.1

Who needs it. Medical doctors engaged to provide care for a ship’s crew and passengers.1

2 Validity and renewal

Document validity. The expiry date, if the issuing system sets one, is shown on the document itself. This reference does not calculate personal expiry dates.

Maintaining competence. There is no international renewal interval for this document.1

3 Which positions

The need follows from the ship and the duties on board, not from the title of the position. In this reference the document appears in the requirements of these positions:

Sources (1)
  1. Maritime Labour Convention, 2006, consolidated text including 2022 amendmentsILO · Consolidated text including 2022 amendments, current amendments effective 23 December 2024 · provision: A4.1.4(b); medical doctor for ships carrying 100 or more persons, ordinarily international voyages exceeding 3 days · checked 6 October 2026

Revision of 7 October 2026

Reference information based on regulatory documents, not legal advice. The reference does not verify a personal document and does not promise its recognition by any flag.

Professional Qualification Evidence – Ship’s Medical Doctor | Rynda Crewing