Flavordave outlined a plan that many follow and is easy to comply with.

I think a better question would be how many high-schools out there actually practice 100% full contact. My guess is none. I know for a fact that arguably the best high school in the country (CA school) over that past 20 years does what would already comply with this regulation.

I actually think this is good to reel in the few wackos that believe you need 100% contact all the time. You can do a lot with 100% pads, 100% speed 100% hit-and-wrap and avoid driving the the players to the ground for 2 days-a-week during the season.