25. RADIO COMMUNICATIONS

25.1 - Introduction

  1. Use of on-field radio communication (sometimes known as official-to-official or O2O) is strongly recommended where available.
  2. Radio equipment must conform to the technical requirements of the country in which the game takes place. In addition:
    1. The use of a headset is mandatory - you need to keep what you hear private and your hands free during the game.
    2. Voice activated or "open-mic" radio communications should not be used, since this is likely to clutter the airwaves with noise. "Push To Talk" style radio communications should be used.
  3. Radio communications should only be used by officials actively involved in the game. These include:
    1. on-field officials;
    2. Video Judge and Video Assistant;
    3. alternate officials;
    4. assessors;
    5. off-field officials acting as a "buddy"/trainer to on-field officials;
    6. officials attending the game in an official supervisory or training capacity;
    7. officials working as a timekeeper or scoreboard operator;
    8. officials working as chain crew or ball personnel;
    9. officials working in a media liaison role;
    10. prospective officials attending a game to observe the officials (if the crew agrees).

It is appropriate to share radio communications with fellow officials (or prospective officials) in order to facilitate education and aid in observing how the officials work. @

  1. Radio communications should not be used by or shared with any non-match officials.
  2. If separate crews are working games at the same venue (e.g. a finals day or bowl weekend), as a matter of courtesy, either the succeeding crew should not use or test their radios until the previous crew has finished its game or else the succeeding crew should ensure they are using a different frequency. ×
  3. If it is found that any non-official (player, coach, spectator) is listening in to or recording the on-field crew radio communication without permission (eavesdropping), this should be reported as it is in conflict with the spirit of Rule 1-4-13-c. (Note: It is reasonable for coaching staff or game management to have their own radios to communicate amongst themselves. If you discover that you are accidentally using the same frequency/channel, change channel. This is not an infraction of Rule 1-4-13-c.)
  4. Be aware at all times that somebody might be listening to what you say, so be professional.

25.2 - Before the game

  1. In the week before the game, the Referee should remind everyone that radios will be used and that they should recharge the batteries. At least one official should bring a charger with them to the game in case anyone forgot to do that.
  2. In the pre-game, agree what channel to use (and at least one backup to switch to if there are reception or other problems). Regular users will be able to tell when reception is poorer than usual - usually demonstrated by hearing static or other people's voices, or failing to hear other members of the crew clearly. @ This should prompt trying out a different frequency.
  3. Before leaving the dressing room for the field and/or when on the field, test that everyone can receive everyone else. After the Referee initiates the test, each other official should, in turn, speak to confirm they have heard all the previous official(s) on the list. Transmission order: R, U, D, L, B, F, S, C, V.

25.3 - Mandatory uses

The following uses are compulsory (by any member of the crew, unless specified):

  1. Relay the game clock time and status.
    1. "Time remaining?" Timekeeper (only) should reply.
    2. "Ready or snap?" Covering official (only) should reply.
    3. Is this a 10-second runoff situation ("Why did the clock stop?").
    4. If there is no visible game clock,
      1. Wing officials should relay the game clock time to their sideline; R and U to offense and defense, where possible.
      2. Relay the mandatory Rule 3-3-9-b notification every time the game clock stops in the last two minutes of each half.
      3. Crews may agree to relay the game clock time at each score, penalty and change of possession.
    5. When the timekeeper relays the time, an official (normally the Referee) should acknowledge it by repeating back the time remaining.
  2. [BACK JUDGE OR SIDE JUDGE] Transmit the time remaining on the play clock - but it needs to be done at 12 seconds to give the Referee time to relay it to the offense.
  3. Foul called, team and number ("False start, red, 73"). If the calling official doesn't transmit this, the Referee should, after it's reported to them and before doing the rest of the enforcement procedure (MOFO 19.3.3.h.ii).
  4. [REFEREE] Confirm the score after an extra point, field goal or safety ("Score is now home 21 visitors 7" - home team first). [ON-FIELD TIMEKEEPER] Acknowledge this by repeating back the score.
  5. [REFEREE] Tell the crew to switch to onside kick mechanics ("Onside kick; onside kick"). This should be acknowledged by the officials who have to move as a consequence.
  6. During instant replay review, and using specified "key phrases" (MOFO 24.6). @

25.4 - Encouraged uses

The following uses are encouraged (by any member of the crew, unless specified):

  1. When targeting (or a similar serious foul) is called, the calling official should ask "Did anyone else see the hit on white 84?"
  2. The sideline official nearest to the offended coach may transmit the Head Coach's decision to accept/decline a penalty, when enforcement is not obvious.
  3. [REFEREE] When there is a potential intentional grounding, ask "Was there a receiver in that area?"
  4. [UMPIRE OR CENTRE JUDGE OR LINE JUDGE] Penalty distance, enforcement spot and succeeding spot (e.g. "We're going 10 yards from the 37 to the 27", "We've gone half distance from the 8 to the 4") (MOFO 19.3.3.h.ii). This needs to be timed to avoid the Referee's penalty announcement.
  5. [REFEREE] When the enforcement spot for a penalty is not obvious, this should be transmitted to the rest of the crew.
  6. Alerts, e.g.:
    1. The down box is showing the wrong number ("Down box should be 3").
    2. An official is not in position ("Umpire isn't ready").
    3. The ball is dead close to the line to gain ("It's close").
    4. Who has goal line responsibility ("Wings have the goal line").
    5. What type of try Team A looks like attempting ("They are going for 2 points").
  7. Reminders, e.g.:
    1. Hurry-up offense ("Remember, Umpire needs to go and get the ball if the clock is running.")
  8. Mechanics snafus, e.g.:
    1. An official is in the wrong position or did something wrong ("Jim, that was your out-of-bounds.")
    2. Nobody signalled to stop the game clock at the end of the down ("Do we have a first down?")
    3. Nobody made a ruling on the result of the play ("Was the pass complete or incomplete?") §
  9. When face to face discussions are taking place, one official should press their transmit button so that the rest of the on-field crew and the video judge can hear what is being said. @

25.5 - Potential uses

The following uses are approved on an occasional basis, but should not be used routinely:

  1. Confirming cross-field mechanics ("Line Judge has a spot.")
  2. When an official needs someone else to talk to a player on their behalf (give some details, briefly) ("Umpire, please ask red 65 to keep their hands inside the frame.")
  3. Confirming the details before announcing a penalty (Referee: "What was the player's number again?")
  4. Transmitting the yard line the ball is on after a return ("Ball is on the 33 going out.").
  5. Transmitting the Back Judge's key (but only if in serious doubt) ("Back Judge has 88").

25.6 - Prohibited uses

The following uses are prohibited:

  1. Profanity, anger, opinions of the teams - remember you may be being listened to.
  2. When you would interrupt someone else's communications, e.g.:
    1. The Referee is giving (or about to give) penalty announcements (unless you urgently need to correct a significant mistake).
    2. The Referee (or another official) is talking (or about to talk) to players or coaches.
  3. When the ball is live or about to become live - sound your whistle if you need to attract attention urgently and stop play.
  4. Ambiguous messages, e.g.:
    1. Talking about a team or an action without identifying a team by its name, colour or as offense/defense.
    2. Talking about a player without identifying them by team and number.
    3. Talking about a side or end of the field without being specific.

25.7 - If a radio unit becomes inoperable

  1. Continue with the remaining radio units. Any official with an inoperable unit will need special consideration when it comes to communication.

25.8 - General reminders

  1. Radio is there to supplement the current mechanics, not replace them.
  2. Don't attempt to talk over someone else.
  3. Remember to press the button and pause before speaking.

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Editor: Jim Briggs, Editor, IAFOA Manual of Football Officiating
jim.briggs.football@gmail.com

Generated: 14/1/2026, 1111