Note- The rulings in this sub-section may be out of date. Refer to the latest DCI rules for more accurate information.
D.4.1- Decision of the head judge is final. This is true even if the judge turns out later to have made an incorrect ruling. [Tournament Rules 1997/10/01]
D.4.2- Decisions on assistant judges can be appealed to the head judge. [Tournament Rules 1997/10/01]
D.4.3- All sanctioned title events require a Level III certified judge. Title events include Pro Tour(TM) Qualifiers, Grand Prix(TM) tournaments, Grand Prix Trial tournaments, and Regional Championships. [Tournament Update 1997/08/01]
D.4.4- All pre-release events require a Level II certified judge. [Tournament Update 1997/08/01]
D.4.5- Judges are required to have an updated DCI Tournament Coordinator Handbook and a copy of the current DCI Standard Floor Rules available. [Tournament Rules 1997/10/01]
D.4.6- If a judge takes longer than a minute to make a ruling, the players may request that their match be extended by the time the ruling takes. Whether or not this is granted is up to the head judge. [Tournament Rules 1997/10/01]
Note- All sanctioned tournaments require a Level II certified judge. If one is not present, the K value for player ratings will be 1/2 (most often 16). This is cumulative with other decreases in the K value. [Tournament Update 1997/08/01] See Rule D.5.9.