Ill. Admin. Code tit. 68, § 1370.530
a) Fouls
C) Holding an opponent with one hand while hitting with the other;
F) Butting with the head or shoulder;
b) Injuries
3) A referee shall consider the decision of the physician.
c) Injuries Sustained as a Result of Fouls
1) Intentional Fouls
2) Accidental Fouls