(a) The classes of contestants and the weights for each class are shown in the following schedule: Flyweight . . . . . 112 lbs. or under Bantamweight . . . . . over 112 to 118 lbs. Featherweight . . . . . over 118 to 126 lbs. Lightweight . . . . . over 126 to 135 lbs. Welterweight . . . . . over 135 to 147 lbs. Middleweight . . . . . over 147 to 160 lbs. Light-heavyweight . . . . . over 160 to 175 lbs. Cruiserweight . . . . . over 175 to 190 lbs. Heavyweight . . . . . all over 190 lbs.
(b) No contest may be scheduled and no contestants may engage in a boxing contest without the commission's approval if the difference in weight between contestants exceeds the allowance as shown in the following schedule: 112 lbs. - 118 lbs. . . . . . not more than 3 lbs. 119 lbs. - 126 lbs. . . . . . not more than 5 lbs. 127 lbs. - 135 lbs. . . . . . not more than 7 lbs. 136 lbs. - 147 lbs. . . . . . not more than 9 lbs. 148 lbs. - 160 lbs. . . . . . not more than 11 lbs. 161 lbs. - 175 lbs. . . . . . not more than 12 lbs. 176 lbs. - and over, . . . . . no limit