The ENG1 medical certificate, explained
Alongside STCW Basic Safety Training, an ENG1 is the other certificate every superyacht crew member needs before they can be legally employed on board — proof, from a doctor, that you're medically fit to work at sea.
What is an ENG1?
The ENG1 is a seafarer's medical certificate issued by the UK Maritime and Coastguard Agency (MCA), confirming you're medically fit to work at sea. It's the standard medical accepted across the superyacht industry, even on yachts flagged outside the UK.
Who can issue one?
Only doctors approved by the MCA can issue an ENG1. Approved doctors practise in the UK and in many crew hubs abroad, including France, Spain, the US and the Caribbean, so you don't need to travel to the UK to get one.
How long is it valid?
Up to two years for most adults (one year if you're 16–18). It becomes invalid earlier if you develop a condition that affects your fitness to work, so you'll need a fresh one before it expires — most crew renew it alongside their STCW refresher.
What does the exam involve?
A general physical exam, an eyesight and colour-vision check, a hearing test, and a review of your medical history — around 30–45 minutes in total. There's no cardio fitness test; it's a fitness-to-work medical, not an athletic assessment.
What does it cost?
The MCA sets a standard fee for the exam itself (check the current rate, as it's periodically updated), and approved doctors abroad may charge a comparable local rate. It's a fixed, published fee — be wary of anyone charging well above it.
Find an MCA-approved doctor
Our sister site keeps a list of MCA-approved ENG1 doctors by location, alongside pricing and appointment details.