Helmet: according to UIM rule 205.07 (GT10: 551.1.01), at least 50% shall be fluorescent orange, yellow or red. List of UIM approved helmets here
Vest: CE approved inherently buoyant (no automatic inflation) with crotch strap or according to UIM rule 205.06 (GT10: 551.1.01)
All limbs must be covered (racing suit) according to UIM rule 205.11. Racing shoes are mandatory, gloves are highly suggested.
UIM rule 551.2.01
Mercury F 9.9
Tohatsu MFS 9.8
Yamaha F 9.9
Mariner F 9.9
Every driver must have a license issued by the Finnish Sailing and Boating Association (SPV).