Additional requirements
Governing: CISR 504; GSF-01; MSN 050 §6; MSN 051 §§3–4; BSN 2025-015 §3; MPM §§7–8; CISN 01/2024 §§4–5, 7. Builds on: L1.2.
GMDSS
| Flag | Rule for deck officers | Separate GMDSS endorsement? |
|---|---|---|
| Cayman | Masters, chief mates and OOWs must hold a GMDSS ROC or GOC (STCW IV/2); copy with the application | Not stated |
| Isle of Man | GMDSS ships (commercial, 300 GT and over): ROC for A1; GOC for A2, A3, A4 (MSN 050 §6) | No; send the certificate with the application |
| Bermuda | "Radiocommunications" added to the deck endorsement; separate GMDSS CoC included if issued separately | Stand-alone radio operator endorsement possible (§3(3)) |
| Gibraltar | Masters, chief mates and OOWs must hold ROC or GOC (GSF-01) | Not stated |
| BVI | Reg. 9: anyone performing radio duties on a GMDSS ship holds a GMDSS certificate | Not found |
An OOW on an ROC aboard a yacht trading beyond A1 is a familiar finding. Compare the sea areas on the yacht's radio documents with your certificate.
English
| Flag | How English is shown |
|---|---|
| Cayman | Not needed for countries marked "Evidence of English not required"; otherwise e.g. confirmation by a Cayman official, English as first language, British Council advanced certificate, IELTS overall band 6 or TOEFL (MPM §8); applicant also declares proficiency on CISR 504 |
| Bermuda | Shipowner's responsibility; owner-signed statement on the application (§3(1)) |
| Gibraltar | Evidence of proficiency with GSF-01; English is the working language |
| IoM / BVI | No specific rule found in the endorsement notices |
Law and administrative procedures (LAP)
STCW I/10.2 applies at management level: master, chief mate, chief engineer, second engineer.
| Flag | How it is met or checked |
|---|---|
| Cayman | Declaration on the application. MPM §7 says the management company or master declares; CISR 504 has the applicant declare. Master's and Yachtmaster's Handbooks recommended |
| Isle of Man | Commercial Yacht Master's Handbook (yachts); Master's Handbook (ships) (MSN 051 §3.3) |
| Bermuda | Adequate knowledge of The Guide to the Bermuda Flag (MG-03), checked by surveyors at ISM, ISPS and MLC inspections |
| Gibraltar | Yachtmaster's Handbook (Commercial Yachts) is the GMA's yacht guide; no explicit LAP statement retrieved |
| BVI | No LAP publication identified |
TIP — Read the handbook before the surveyor asks These are short practical guides. A master who can answer "who do I notify after a casualty?" from the flag's own handbook passes the LAP check without drama.
CAUTION — Alcohol limits are flag rules too Cayman and the IoM both apply 0.05% blood alcohol or 0.25 mg/l in breath to anyone on safety, security or environmental duties (CISN §5.1; MSN 050 §11).