Interesting! Over here in uk PPE is mandatory in any professional company, Health & Safety Dept would throw the book at anyone not wearing it, and God help you if anyone has the misfortune to have an accident. Hard hat, gloves chainsaw pants personal first aid kit, chainsaw boots or spats with steelies (yuk!) for starters, that's just for ground crew. I even heard a couple of summers ago of a climber getting pulled by H & S for not wearing a shirt up a tree, the reason given was protection from the sun! I didnt even know that was a no-no, Nanny State at its best. Personal 1st Aid kit should not be carried in the hard hat, apparently it prevents the webbing from absorbing the shock of impact and transmits it to the skull, well thats the reason I was told when training. Personally I would wear the kit whatever the weather, but it is soooo hot in the summer, and our summers are cooler than yours in the States so I can see your point. I think there is more chance of heat exhaustion sometimes than any other hazard!