All ACBL events are run under the Laws of Duplicate Bridge. Chapter X of the Laws discusses the Tournament Director (DIC) responsibilities generally and then specifically in regard to such items as rulings and penalties. A director should have in his or her possession a current copy of the “Laws of Duplicate Bridge.”
The director should make a ruling at the playing table only when necessary for play to proceed or when the ruling is clearly stated in the Laws. In other cases, the director should defer the ruling in order to consider the facts and consult with other staff. The director should make the decision as soon as possible, but oftentimes it is appropriate to allow participants some “cooling off time”.
The director should inform the participants in contested rulings or rulings which involve an adjusted score of their right to appeal.