Change description : 2026-01-29 16:00:00: Removed warning around high numbers of applications and 21 day processing time. This has returned to the usual 14 day processing time. [Guidance and regulation]
If you are applying for your CoC revalidation and wish us to assess your application on an urgent basis, please ask your company to email revalidation@mcga.gov.uk using “Fast Track” in the subject line.
Overview
Your CoC is valid for 5 years’ seagoing service. You can apply to renew a valid or expired CoC at any time.
If you apply up to 6 months ahead of your CoC expiring, we will honour the anniversary date; any earlier than 6 months and the new expiry will be 5 years from the date we revalidate your CoC.
You can apply for revalidation if you’ve completed one of the following:
3 months’ seagoing service as a supernumerary immediately before applying
If your CoC lapsed a long time ago, you’ll need to demonstrate ‘continued competency’ (i.e. show you met the sea service/occupation requirement in the 5 year period before your CoC expired and every 5 year period after this).
How to apply
Please download and complete the following application form:
There’s no additional form/fee if you wish to revalidate your UK GMDSS at the same time.
Submitting your application
Please ensure your documents are included as attachments or within a .zip folder. Unfortunately, we cannot open .rar extensions or links to file-sharing services (e.g. OneDrive, Google Drive, Dropbox etc).
You should receive an automated email acknowledging receipt - please check your junk/spam folder. Your application will be added to the queue and assessed in due course.
Processing your application
If there’s any issues with your application, we will email you.
Upon dispatch, you’ll receive an email with courier tracking details (following customer feedback, Scottish Highlands & Islands addresses will be sent by Royal Mail Special Delivery).
Please note we have modernised our CoC format to a new photocard design, an example of which is shown in Annex A of MIN 655. We are also issuing GMDSS cards so you do not need to post us your UK GMDSS booklet.
Screening
In line with section 4.3 of MIN 655, should your emailed application be selected for random screening, we will email you to request original documents by post.
Fast track requests
It is unlikely we will consider expediting an application within our service standard of 14 days.
If you have been waiting longer than 14 days and need us to assess your application on an urgent basis, please ask your company to email revalidation@mcga.gov.uk directly with your full name, date of birth and the vessel joining date.
Revalidation fee
The fee is currently between £64 and £84 depending on your return address:
UK return address - £64
EU/EEA return address - £74
Rest of World return address - £84
You can pay by debit/credit card online using one of the GovPay payment links on the application form.
Please note that once we begin to assess your application, the fee becomes non-refundable.
Refresher training
We need to see the following updated training certificates issued within the last 5 years:
Personal Survival Techniques (STCW Section A-VI/1 , paras. 3 and 4.1)
Fire Prevention and Fire Fighting (STCW Section A-VI/1, paras. 3 and 4.2)
Proficiency in Survival Craft and Rescue Boats Other Than Fast Rescue Boats
(STCW Section A-VI/2, paras. 5 and 6)
Advanced Fire Fighting (STCW Section A-VI/3, paras. 5 and 6)
Refresher training must be in date when we receive your application. For revalidation purposes, it doesn’t matter if the refresher training expires afterwards; you will still get the full term revalidation.
Advanced courses do not exempt you from the basic courses. Combined certificates (e.g. AFF+FPFF or PSCRB+PST) are fine.
We only accept PSCRB and AFF refreshers issued under the authority of the MCA or a country listed on our Flag State Endorsement list.
We accept PST and FPFF refreshers issued under the authority of a party to the IMO STCW white list., however, we will not accept this training if it was done online.
PSCRB-R
Restricted PSCRB cannot be used to revalidate merchant CoCs but can be used to revalidate Yacht-restricted CoCs (as per section 5.4 of MSN 1858 Amendment 1 for Deck Officers, and section 6.3 of MSN 1904 for Engineers).
Revalidating with PSCRB-R will result in a Davit lifeboat limitation being applied to your CoC.
Certificates which do not need all four refreshers
OOW Yachts <3,000 GT only - do not need to do updated AFF
Master (Code Vessels) <200 GT with OOW Yachts <500 GT only - do not need to do updated AFF and PSCRB
Master (Code Vessels) <200 GT with OOW Yachts <3,000 GT only - do not need to do updated AFF
AMSA 2 day refresher
If you’re in Australia, we accept AMSA-approved STCW Continued Competence Refresher as meeting the 4 x updated training requirement.
If you do not provide the following optional certificate with your revalidation application, you will receive an ECDIS/High Voltage limitation:
Deck Officers - MCA-approved ECDIS/NARAS/NAEST issued on or after 1st January 2005
Engineering OOW - MCA-approved High Voltage Operational or Management
Second/Chief Engineer - MCA-approved High Voltage Management
Tanker endorsements
To revalidate existing tanker endorsement(s) held on your UK CoC, we need to see one of the following:
90 days’ seagoing service on board a tanker carrying the relevant cargo, or;
Relevant MCA-approved tanker training certificate(s), or;
30 months’ occupation in a role involving loading/unloading dangerous cargo
Sea service/training/occupation must be within the last 5 years.
If you’re revalidating Advanced Oil and/or Advanced Chemical, we’ll also need to see a breakdown of the cargoes carried if your service was on a combined oil+chemical tanker.
Carrying vegetable oil alone does not count towards revalidating a chemical tanker endorsement.
If you do not meet the requirements, we will email you for further evidence or confirmation that we can remove your tanker endorsement(s).
You’ll need to show 12 months’ seagoing service in the last 5 years or 3 months’ seagoing service in the last 6 months. For service on yachts, this is on board service (i.e. date of engagement to the date of discharge).
If you hold Master (Code Vessels) <200 GT CoC, we’ll accept 6 months’ seagoing service on code vessels in the last 5 years.
Qualifying sea service
Deck Officers: seagoing service on ships of more than 80 GT or 24 metres
Engineering Officers: seagoing service must be on vessels of at least 750kW registered power
Yacht CoC: on board service on yachts of more than 15 metres or at least 350kW registered power
Service as an Able Rating (AB) is fine. For service as Ordinary Seaman (OS), you’ll need to provide proof that your duties are relevant to the certificate held.
Service as a motorman, oiler or greaser is fine but wiper will not be accepted.
For service inside UK categorised waters or within harbour limits for waters outside the UK or on vessels which do not meet the above criteria - please see the acceptable occupation route below:
Acceptable occupation
You’ll need to show at least 30 months in the last 5 years. Examples of roles we accept include:
Marine Pilots
MCA surveyors
maritime college lecturers
technical, engineering and marine superintendents or ship repair managers
Harbour Masters
hydrographic surveyors
Classification Society marine surveyors
officers working on vessels of over 24 metres within categorised waters
Engineering and Deck officers actively managing yacht repair, refit or construction
VTS operator
USV operator
Please note this list is not exhaustive; occupations not listed above will be assessed on a case by case basis during the application process.
We’ll need to see a company letter confirming your job title, employment dates and a breakdown of relevant duties/responsibilities.
If you have both sea service and acceptable occupation, we will equivalise the different rates by multiplying any qualifying sea service by 2.5 and adding this to the occupation.
Alternative route
If you do not meet either the sea service or acceptable occupation requirements, you will need to follow the alternative route - please see sections 9.1 to 9.8 of MSN 1861 Amendment 1 for more details.
If you already hold Advanced Oil or Advanced Chemical tanker endorsement on your UK CoC, you automatically qualify for Basic Oil and Chemical endorsement (i.e. no training required).
Advanced/Management level
You must meet the basic level requirements (as above) unless you are exempt because you hold the corresponding basic endorsement on your UK CoC, or you are applying for Advanced Oil/Chemical and hold the opposite Advanced Oil/Chemical endorsement on your UK CoC, and;
Two forms of evidence (e.g. discharge book and dangerous cargo testimonials) showing 90 days’ seagoing service on board a tanker carrying the relevant cargo.
Lapsed endorsements
If you previously held tanker endorsement(s) on your UK CoC but they were removed, you will still need to complete MSF 4210 and pay the fee, however, the requirements are:
90 days’ seagoing service on board a tanker carrying the relevant cargo, or;
Relevant MCA-approved tanker training certificate(s), or;
30 months’ occupation in a role involving loading/unloading dangerous cargo.
PSSR, EFA and MFA
Your UK CoC is proof that you have met the requirements for PSSR (A-VI/1-4), EFA (A-VI/1-3) and MFA (A-VI/4-1). There’s also no requirement to update these three courses. If an employer is querying this, please refer them to sections 5.1 and 5.2 of MIN 643.
Pre-August 1998 grandfather rights
If a seafarer had 6 months sea service prior to August 1998, they weren’t required to complete PSSR or EFA originally (as per section 2.4 of MGN 97).
‘First Aid at Sea’ certificate issued before August 1998 should be considered as equivalent to MFA (as per section 7 of MGN 147).
Medical Care
Medical care is not a requirement to revalidate your CoC. If you serve as Master or the person in charge of medical care on a UK flagged vessel, please note section 5.3 of MSN 1865 Amendment 1.