300 - Appointment of Officials
For all international games, the following officials shall be appointed:
"Game Officials"
"Off-ice Officials"
Commentary
National Associations have the authority to use the Two Official System in games which are completely under their jurisdiction.

311 - Referee and Linesmen Equipment
[a] All Referees and Linesmen shall be dressed in black trousers and official sweaters. The Referee shall wear red armbands, 8 cm wide, on the upper part of each sleeve (only in the three official system).
[b] They shall wear skates and a black hockey helmet with a visor, and shall be equipped with an approved whistle and metal tape measure with a minimum 2 m length.
Case Book
B - Interpretation
Visors shall be transparent and clear. This rule applies to players and game officials.
312 - Referee Duties
The Referee shall have general supervision of the game, full control of game officials and players, and his decision shall be final in case of any dispute.
313 - Linesmen Duties
[a] The Linesmen shall be responsible mainly for the infractions concerning the lines (offsides, icing the puck).
[b] They shall face-off the puck in most circumstances and shall assist the Referee in conducting the game. The complete duties of the Referee and Linesmen are outlined in Annex 4.
Case Book
A - Linesman Procedure
1. Linesmen do not have the authority to report Butt-Ending infractions to the Referee when a Double Minor penalty is to be assessed. However, they shall give their observations at any time when requested by the Referee.
2. Linesmen cannot stop play to call a Double Minor penalty for High Sticking, which may have resulted in an injury. However, they shall give their observations at any time when requested by the Referee.
3. Linesmen do not have the authority to report Spearing infractions to the Referee when a Double Minor penalty is to be assessed. However, they may give their observations at any time when requested by the Referee.
C - Situations
Situation 1: A delayed penalty is signaled against Team A, and a subsequent infraction by Team A that would call for a Bench Minor penalty, is observed by the Linesman.
Ruling: Linesmen cannot stop play and no signal is to be given. The Linesman shall report the infraction to the Referee at the first stoppage of play.
321 - Goal Judges
[a] There shall be one Goal Judge stationed behind each goal. The Goal Judges shall not change goals during the game. In IIHF competitions they may not be nationals of either team engaged in the game.
[b] The Goal Judge shall decide only if the puck has passed between the goal postsand completely over the goal line, and shall then give the appropriate signal.
[c] The Referee may consult with the Goal Judge, but the Referee shall give the final decision in matters of a disputed goal.
Commentary
1. The Goal Judges shall wear officials' sweaters.
2. If, after the start of the game, it becomes apparent that a Goal Judge is guilty of giving unjust decisions, the Referee shall appoint another Goal Judge.
See also Video Goal Judge System and Video Support System in IIHF Sports Regulations
322 - Scorekeeper
The complete duties of the Scorekeeper are outlined in Annex 4.21 to 4.23.
323 - Timekeeper
The complete duties of the Timekeeper are outlined in Annex 4.24.
Case Book
C - Situations
Situation 1: A goal is scored but, in review, the Referee is notified that the clock stopped and was not running when the goal was scored.
Ruling: The goal shall count provided that the period was not over. The Referee, in discussion with the Linesmen and the Timekeeper, shall determine the length of time that the clock was not running and make the necessary adjustment. If neither the Referee nor the off-ice officials can determine the time adjustment, the game shall continue using the present time on the clock.
324 - Announcer
The complete duties of the Announcer are outlined in Annex 4.25.
325 - Penalty Bench Attendants
There shall be one Penalty Bench Attendant per team penalty bench. The complete duties of the Penalty Bench Attendant are outlined in Annex 4.26.
330 - Video Goal Judge System + Video Support System
[a] The Video Goal Judge System (VGJ) shall be applied only at the request of the Referee or the Video Goal Judge.
[b] Only the Referee may apply the Video Support System (VSS).
[c] The following are the only situations subject to review by the Video Goal Judge System or by the Referee using the Video Support System:
1. Puck crossing the goal line.
2. Puck in the net prior to the goal frame being displaced.
3. Puck in the net prior to or after the expiration of time at the end of a period.
4. Puck directed into the net by hand or kicked into the net.
5. Puck deflected into the net of an official.
6. Puck struck with a high stick above the height of the crossbar by an attacking player prior to entering the net.
7. Establishing the correct time on the official clock, provided the game time is visible on the Video Goal Judge's monitor.
Commentary
See also Video Goal Judge System and Video Support System in IIHF Sports Regulations

Referee Discussing With Video Goal Judge
Case Book
B - Interpretation
1. During a review, all players may go to their respective benches.
2. No video review can be requested by Referee on the following situations:
a. Whether or not puck entered net before or after whistle
b. Whether puck directed in with any part of the body other than hand or skate
c. Player slides into the goalkeeper unless to see if puck is in the net
3. The Referee can request a video review during the Penalty Shot and Game Winning Shot Procedure (G.W.S)
4. During the Penalty Shot and G.W.S. the Referee cannot request a video goal review on the second shot after rebound of the puck.
5. The V.G.J can be used for the reset of the clock after a false face-off during which the clock has been running.
340 - Proper Authorities
The term "Proper Authorities" or "Proper Disciplinary Authorities" as applied under these rules, is defined as the immediate governing body of the games involved.