I'm no lawyer or survival expert, but it seem to me that a better idea would be to have training instead of equipment.

Because as we all know, just because someone has gear doesn't mean they know how to use it.

How many people have bought one of those cheap junk survival kits and just thrown it in their bag with out bothering to open it to see what's inside it?

So I would have to say that training (possibly with an examination or test like you have to take to get a driver's license)to different levels to meet different contations would be better than a mandatory gear requirement. although i would say that having a generalized list of gear wouldnt be a bad idea.
(sutable clothing ect)