i was told by jr high coach that if you had a bbcor you would be able to use it this year and then all bats must be besr's. or which ever way the lettering goes.the old bats may be used in jr high 1 more year if you already had it.if not you must get the new bats. i'm not sure about high school.
Don't use a bbcor unless you have to, you will look like a weaker hitter compared to the other players. It's not as bad as using a wood bat when everyone else is using aluminum. Use a wood bat in practice and besr in games if you can. Not sure what middle school rules will be this year.