Application forms for seafarer certificates
| Form | Title | Guidance |
| MSF 4274 | Masters, Chief Mates & Deck Officers in the Merchant Navy (Please also use this for all upgrades) | MGN 92 (M) Part 2 |
| MSF 4275 | Engineer Officers in the Merchant Navy | MGN 93 (M) Part 3 |
| MSF 4278 | Engineer Officers on Large, Commercial and Privately Owned Yachts and Sail Training Vessels | MGN 156 (M) Part 17 |
| MSF 4509 | Application for a discharge book and/or British Seaman's Card | See application form |
| MSF 4201 | Revalidation of an existing STCW Certificate of Competency | MGN 9 (M) Part 9, MGN 423 (M) |
| MSF 4258 | Alternative route for the revalidation of a Certificate of Competency for officers not meeting the requirements of MGN 9 | MIN 443 (M) |
| MSF 4203 | Certificate of Equivalent Competency | Certificate of Equivalent Competency Application Information |
| MSF 4343 | Masters, Chief Mates and Deck Officers on Commercially and Privately Operated Yachts and Sail Training Vessels | MSN 1802 (M) |
| MSF 4340 | Ratings on Commercially and Privately Owned Yachts and Sail Training Vessels of Less Than 3000gt | MGN 270 (M) |
| MSF 4352 | Letter of Initial Assessment - Engineering Applications Only | |
| MSF 4210 | Tanker Endorsement to a Certificate of Competency | MGN 95 (M) Part 5 |
| MSF 4354 | Application for Initial STCW Endorsement and Subsequent Revalidation to GMDSS Certificate of Competence | MGN 214 (M) Part 4 |
| MSF 4807 | Application for and Revalidation of a Vessel Traffic Services (VTS) Certification Logbook | MGN 434 (M+F) |
| MSF 4299 | Replacement of a Certificate of Competency or a Certificate of Equivalent Competency | |
| MSF 4371 | MCA Issued Watch Rating Certificate | MIN 303 (M) |
| MSF 4345 | Fishing Deck Officers: Issue, Conversion or Upgrade | MGN 121 (M) Part 13 |
| MSF 4391 | Application for a Certificate of Proficiency (CoP) |
View full list of MCA Marine Guidance Notes
Please note: All information provided to the MCA is treated in confidence and is used for the purpose of assessing applications for certificates of competency and other marine qualifications. Verification of the information contained on your Certificate of Competency may be provided to other national administrations in accordance with the requirements in STCW.