lucianopedro
There are numerous courses but the BOSIET and COET (OLF recognised) are the main one’s for oil & gas work. If you’re just working off a vessel then the STCW95 certification comes into play.
Don’t forget the medical certification too, either UKOOA and OLF for oil & gas or ENG1 for vessel work.
I have the lot as it makes one more employable which answers your initial question. Take a look through the links to find reputable venues, prices vary wildly.
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