Go ahead and read this section, entitled "Independent Team Participation."

Oh hell, I'll go ahead and do the work for you...

3.101
During the school season for a given sport... a student shall not participate on any non-school team...

3.013
The phrase "participate in any non-school team"... is defined to mean engaging in any team activity, including but not limited to... drills, physical practice sessions...

So, that's the rule... now you can figure out what the heck it means and how far you want to go.