If you work in the offshore energy sector, your periodic medical assessment is just part of the job. However, the Offshore Energies UK (OEUK) Medical Guidelines on Fitness for Offshore Work have recently undergone a major update. Issue 8 (along with the Issue 8.1 updates) comes into effect on 1st November 2025.
Whether you are a roustabout, a crane operator, or an installation manager, it is vital to understand what these changes mean for your next assessment. First, a bit of good news: you do not need to rush out for a new medical. The changes will not be backdated, meaning your current certificate remains fully valid until its normal expiry date, and you will simply be assessed under the new rules at your next scheduled appointment.
Here is a breakdown of the new changes, their practical impacts, and what you can expect when you are handed your new certification.
Key Changes to the Guidelines and Their Practical Impact
1. The UK Safe Weight Limit (SWL) Perhaps the most significant change for the UK sector is the introduction of a maximum clothed weight limit of 124kg. This is being introduced in phases to give the workforce time to adapt:
-
The Practical Impact: If you weigh over 110kg, the examining doctor will advise you of the new policy limits. During the transition phase (February to October 2026), if your clothed weight is between 115kg and 124kg, you will be issued a reduced-duration certificate (usually 3 to 6 months) to monitor your weight. From 1st November 2026 onwards, anyone weighing over 124kg will officially be deemed unfit for work in the UK sector.
2. Streamlined Routine Testing Routine urinalysis and routine audiometry (hearing tests) have been removed from the standard medical.
-
The Practical Impact: Your medical assessment might feel slightly more streamlined. The doctor will assess your functional hearing through conversational understanding. Tests like urinalysis or audiograms will now only be performed if there is a specific clinical reason to suspect an underlying issue.
3. Delegated Medicals & Geographical Exclusions It is common practice for a trained nurse or ‘delegated assistant’ to perform parts of your physical assessment before a doctor reviews the file and signs the certificate.
-
The Practical Impact: Under Issue 8, if you are not physically examined in person by the certifying doctor, your certificate will no longer be valid for travel to the Norwegian, Danish, or Dutch sectors. If your work takes you to these international waters, you must request an in-person assessment with the doctor to avoid this geographical restriction.
4. Weight-Loss Injections (GLP-1 Agonists) With the rising popularity of weight-loss medications like semaglutide, the guidelines now provide explicit rules for their use.
-
The Practical Impact: You can still pass your medical while taking these medications, but you must provide proof of your prescription, be free of significant side effects, and have waited at least three days since your second dose. You will also be given a specific “Weight loss medication letter” to show the offshore medic, and you will be advised not to increase your dose whilst offshore.
5. New Job-Specific Assessments The guidelines have introduced specific medical criteria for Rope Access Workers, focusing on joint mobility, fine motor skills, and conditions that contraindicate working at height. Additionally, all Emergency Response Team (ERT) members must now undergo spirometry (lung function testing) to ensure they are physically capable of wearing breathing apparatus.
What to Expect: The New Certification Layout
When you pass your medical, you will notice the paperwork looks a bit different. The layout of the certificate has been redesigned to be much clearer and more specific.
Here is what to look out for on the new layout:
-
Task-Specific Indicators: Instead of just a general pass, the certificate now features specific “FIT / UNFIT / NOT ASSESSED” tick boxes for particular duties. This includes in-water training, work on normally unmanned installations (NUIs), food handling duties, crane operator work, and rope access work.
-
Geographical Exclusions Section: There is a brand-new section dedicated to geographical limits. If your medical was delegated to an assistant, it will explicitly exclude Norway, Denmark, and the Netherlands here. It will also list an exclusion for the UK if your medical specifically bypassed the UK Safe Weight Limit.
-
Strict “Permitted Annotations”: The doctor can no longer write free-text notes or messages on your certificate. There is an annotations box, but it is strictly limited to pre-approved phrases, such as “Must wear corrective glasses/lenses for crane operator work” or “Fit for UK sector North Sea only”.
The Different Types of Medical Documents
Depending on your health and your role, you could be issued one of several different documents:
-
Standard Certificate of Medical Fitness: This is the unrestricted pass. It means you meet all guidelines and are fully fit to travel and work on any UK offshore installation without requiring any special workplace modifications.
-
Conditional Certificate: If a medical condition means you do not meet the standard criteria, you aren’t necessarily banned from offshore work. An Operator Medical Advisor (OMA) may approve you to work on specific, named installations where your health needs can be supported. This certificate explicitly lists the installations you are approved for and any conditions you must follow.
-
Confirmation of Fitness for Survival Training: Sometimes issued if you are waiting on a final medical decision but need to complete your BOSIET/FOET training. It covers you for the physical demands of the training (including shallow-water breathing exercises) but is not valid for actual offshore mobilisation.
-
Certificate of Fitness to Return to Offshore Work: If you have been medevaced or have had a significant sickness absence, you need this document to confirm you are fit to return to your duties. As a practical layout update in Issue 8.1, the expiry date has been removed from this specific certificate.
-
ERT Certificate: If you are an Emergency Response Team member, you will receive this separate three-part document. It records your Medical Suitability, your Aerobic Capacity (like passing the Chester Step Test), and gives you a Safety Risk Assessment grading (from A to D) based on your overall cardiovascular risk factors.
-
Medication Letters: If you take certain prescription drugs (like the weight-loss injections mentioned earlier, or strong medications), the doctor will provide a formal letter to hand to the installation medic and topside doctor so they are aware of your medical history in case of an emergency
At insHealth We are fully prepared for OEUK Issue 8 (November 2025) – including the new 124kg weight limit, delegated medical exclusions, and job‑specific assessments for rope access and ERT member
Last updated: May 2026
*Compliant with OEUK Medical Guidelines Issue 8 / 8.1*