An ML5 medical is a UK Maritime and Coastguard Agency (MCA) domestic medical certificate confirming a seafarer or fisherman is fit to work safely at sea, typically for smaller vessels or closer to shore, covering roles like masters of non-seagoing ships, crew on domestic passenger ships, or fishermen on vessels under 24m. It's a standard medical report and certificate (MSF 4112) completed by a GP or GMC-registered doctor, assessing fitness for duty and ensuring no conditions risk the individual or vessel.
If after reading these notes you are not sure whether you need an ENG1 or ML5 medical, where to send your ML5 form or have any other questions please refer to the MCA website, email medical@mcga.gov.uk or call 0203 81 72835.
• the Master of a passenger ship that does not go to sea (Class IV or V)
• the Master of a commercial vessel that does not go to sea
• the Master or a crew member of a small commercial vessel certificated for Area Category 2 to 6 (no more than 60 miles from a safe haven)
• a crew member or anyone else (for example catering staff) who normally works on a domestic passenger ship (Class VI or VIA) that goes to sea
• Master or Crew of a fishing vessel over 10m but under 24m operating not more than 200 miles from the UK coast or beyond the Continental shelf, and that are not at sea for more than 72 hours.
Boatmasters working as a Master on a seagoing passenger ship require an ENG1 medical with an MCA Approved Doctor.
An ENG 1 is always an acceptable alternative to an ML5 certificate but not vice versa.
This is recommended to ensure you meet the fitness and eyesight standards. For instance, colour deficient vision will mean you are not fit to undertake lookout duties. Send your completed ML5 application directly to the MCA Medical Admin Team with a letter explaining you have not yet
started training.
Only doctors fully registered and licensed to work in the UK are permitted to complete this form.
If you are based abroad and no UK GMC registered medical practitioner is available, you are advised to obtain an ENG1 certificate (or recognised equivalent).
- Original photo ID - preferably passport, driving licence, discharge book or National Citizen ID card.
- Medical summary from your NHS GP
- Your glasses and if you wear contact lenses, take a case and solution to
remove them.
- A list of any medication you are on.
- Complete page 1 of the ML5 form but do not sign the declaration until you are with the doctor who will complete the rest.
If all questions are answered ‘No’ on the form and no further information is flagged, the doctor can complete the ML5 Medical Certificate and give it to you at the time of the appointment. This certificate confirms you are medically fit to hold a BML, RYA commercial endorsement or to work on vessels listed on this form.
If any questions are answered ‘Yes’, or any medical conditions are noted in Section 12, your report needs to be referred on to an MCA ML5 Medical Assessor (even if the examining doctor is an ENG1 Approved Doctor). The ML5 Medical Assessors are doctors experienced in Maritime Medicine and familiar with the differences between ML5 and ENG1 medical systems. They will make a decision based on the your fitness to undertake your role and the Medical Standards in MSN 1886 (M+F).
The ML5 referral does not involve a face to face appointment although you may be contacted by email or telephone if required. In order to start the referral process the applicant should complete section 15 of the ML5 Medical Report (MSF 4112), and send the entire ML5 Medical Report to:
RYA Commercial Endorsement: to the RYA along with your commercial endorsement application.
Fishing: to the MCA Medical Admin Team, Spring Place, 105 Commercial Road, Southampton, SO15 1EG
BML and all other applicants as per page 1: your local MCA Marine Office or RSS in Cardiff depending on who is dealing with your application.
Any ML5 medical that is required by a local authority, such as for a Boatman’s License, should be referred to the requesting authority not MCA.
You can provide further information regarding your fitness if you wish, this may include medical evidence from your GP, a specialist consultant or optometrist as appropriate. Medical evidence can be submitted with the ML5 form in an envelope marked “Private and Confidential” for
forwarding to the MCA ML5 medical assessor.
Once the ML5 has been referred to the ML5 medical assessor, they have 10 working days to determine whether or not they can issue an ML5 medical certificate based on the evidence provided. If not, they may request additional information.
The possible outcomes following a ML5 Referral to an ML5 medical assessor are:
Fit: The certificate has no restrictions placed on it, but may be limited in validity either due to the applicant’s age or if there is a clinical need.
Fit with Restriction: An ML5 Certificate is issued and the assessor has decided that it is necessary to place restrictions on the applicant’s area of operation or duties. It may also be limited in validity either due to the applicant’s age or if there is a clinical need.
Unfit: If after considering all the information available to them, it is clear to the ML5 assessor that the applicant does not meet the medical standards they will be made unfit, and no ML5 certificate will be issued. A letter will be issued to the applicant explaining the outcome.
The ML5 medical assessor will sometimes issue a compliance letter to the applicant to accompany their medical certificate. This is to emphasize that the certificate is issued on the basis of the applicant’s current medical status, including any treatment or monitoring to which they are subject under their GP or consultant. Any change to that treatment may require a review of their medical certification.
There is no charge for a referral. In order to ensure that the referral is dealt with promptly, it is important to ensure that the medical assessor is provided with all available supporting information they may need to make their decision when the form is submitted.
Under 65yrs and no medical issues – 5 yearly up to your 65th birthday. For example if you are 62 years, the certificate will be issued up until your 65th birthday.
Over 65 years and no medical issues – maximum of one year.
If your form is referred to an ML5 Medical Assessor, the length of your medical certificate will depend on your medical condition.
You MUST stop working if you become unfit due to illness or injury during the validity of your ML5 certificate. Even if this is a temporary you are obliged to tell the issuing authority (MCA or RYA).
For instance, if you have diabetes and your treatment changes from diet or tablets to insulin, you must immediately cease work and inform the issuing authority. You will need to obtain anew ML5 report and be medically reassessed before your license can be reinstated. If you fail to do so,
your medical certificate automatically becomes invalid.
It is your personal responsibility not to work when you are
temporarily unfit to do so because of illness or injury. You must
therefore tell the issuing authority (MCA or RYA), if during the
validity of your ML5 certificate, you suffer from or develop any of
the following:
a) a serious health problem or injury where you do not fully recover;
b) any of the conditions listed below:
• seizures or sudden disturbances of consciousness
• myocardial infarction (heart attack) or heart surgery
• problems with heart rhythm
• disease of the heart or arteries
• uncontrolled blood pressure
• diabetes requiring insulin treatment
• stroke or unexplained loss of consciousness
• head injury with continuing loss of consciousness
• Parkinson’s Disease or Multiple Sclerosis
• mental health issues problems including anxiety, depression or
psychosis
• alcohol or drug dependency problems
• profound deafness
• serious deterioration in vision or long-term eye disease
c) any other disability or illness (mental or physical) which
affects your fitness to work, in particular to navigate safely and
to be able to undertake emergency duties. For instance if you
have diabetes and your treatment changes from diet or tablets
to insulin.