Iowa Code § 90A.6
1. The commissioner may suspend, deny, revoke, annul, or withdraw a license, registration, or authority to participate in a professional boxing or wrestling match or mixed martial arts match if any of the following occur:
[C71, 73, 75, 77, §727A.6; C79, 81, §99C.6] 86 Acts, ch 1245, §944 C87, §90A.6 91 Acts, ch 137, §3; 97 Acts, ch 29, §6; 2010 Acts, ch 1122, §8