The referee may penalize any contestant who fouls his opponent during a contest, by charging such contestant with loss of points, whether the foul or fouls be intentional or unintentional. The referee shall use his own discretion in determining the number of points, if any, chargeable against the contestant in each instance, depending upon the severity or harmlessness of the foul and its effect upon the opponent. The referee shall indicate on the official score card supplied by the commission the number of points taken away from a contestant in any and all rounds in which he may find it necessary to charge the contestant with such loss. The referee shall, at the conclusion of each round, notify the judges and commission representative of the number of points to be deducted in accordance with his determination.
"The boxer agrees to equip himself with an abdominal guard of his own selection, type to be approved by the commission, which will obviate the necessity of any claims being made for low blows during the contest. It is expressly understood that this contest is not to be terminated by a low blow, as the protector selected by the boxer is, in his own opinion, sufficient protection to withstand any so-called low blow."
In connection therewith, referees are instructed to count boxers out who fall to the floor claiming foul as a result of a low blow because of the fact that they are now equipped with a protector of their own selection which they agree is of "sufficient protection to withstand any so-called low blow."
Termination. If the incapacitated opponent referred to in the preceding paragraph shall not be ahead on points, the contest shall, nevertheless, be terminated, no decision shall be rendered by the referee and he shall order the purses of both contestants withheld from payment; a full report shall be made by the referee to the commission and delivered to the executive secretary or inspector assigned or on duty, who shall present such report immediately to the commission; a hearing shall be held by the commission and the disposition of the proceeds of the purses and the fines and penalties and other punishment may be assessed as the commission in its judgment may deem expedient.
If a bout is stopped because of accidental or unintentional fouling the referee shall determine whether the boxer who has been fouled can continue or not, and if his chances have not already been seriously jeopardized as a result of the foul, the referee may order the bout continued after a reasonable interval; the timekeeper shall be notified by the referee of his action.
Haw. Code R. § 16-74-120