Indiana Code Title 20. Education § 20-34-8-8

Sec. 8. An applicable student who has been removed from practice or play under section 7 of this chapter may not return to practice or play until the coach, marching band leader, or other official designated by the applicable student's school entity has:

Within twenty-four (24) hours after giving verbal permission for the applicable student to return to practice and play, the parent must provide the coach, marching band leader, or other official designated by the applicable student's school entity with a written statement that the applicable student has permission to return to practice and play.