8.02 (a) (1) Bring his pitching hand in contact with his mouth or lips while in the 18-foot circle surrounding the pitcher's plate, provided, however that the pitcher may touch his mouth or lips in that area, so long as he is not in contact with the pitcher's plate while doing so and so long as he clearly wipes the fingers of his pitching hand dry before touching the pitcher's plate. EXCEPTION: Provided it is agreed by both managers, the umpire prior to the start of a game played in cold weather, may permit the pitcher to blow on his hand.
PENALTY: For violation of this part of this rule the umpires shall immediately call a ball. However, if the pitch is made and a batter reaches first base on a hit, an error, a hit batsman or otherwise, and no other runner is put out before advancing at least one base, the play shall proceed without reference to the violation. Repeat offenders shall be subject to a fine by the League President.