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Each U10 and older game requires a trained and AYSO-certified three person referee team on the field consisting of a referee and two assistant referees.

All referees need to register as volunteers every year. Most certifications only need to be taken once, but a few may need bi-annual or yearly reviews.

Becoming a 2021 certified referee

To become a referee, follow the steps on the Referee Registration page and attend one of the 1-hour field sessions at Sea Cloud Park, at the tent next to field S3:  

  • Saturday August 14 9am, or
  • Tuesday August 17 6pm.

Returning referees are invited to a session on Changes to the Laws of the Game 2021-22 on Thursday August 12 7pm (registration TBD). Coaches and older players are also invited.

For questions or comments about the referee program please contact us at [email protected]

Refereeing 10U-14U matches

10U, 12U, and 14U referees use to schedule games. The minimum badge level for 10U and 12U matches is Regional; for 14U is Intermediate.

Frequently Asked Questions

  1. Can I be the referee for my child's match?
    • The policy in 10U and above is that a parent should NOT referee their own child’s game unless: (1) no referee signs up for the game, or (2) the scheduled referee is a no‐show, or (3) the assigned referee cannot complete the game. The trained and certified parent may be asked to be the referee by the referee coordinators.
    • We have many matches available and are always needing referees to volunteer. It is typical for referees to sign up for a match before or after their child’s match so they can watch their child play.
    • We also encourage referees to sign up for at least 2 matches over the season.
  2. Can I be the Assistant Referee for my child’s match?
    • Yes. The parent should mention the team affiliation to the Referee before the match.
  3. Can Referees or Assistant Referees provide coaching advice when officiating the match?
    • No. The referee may relieve ARs from their duties if they are coaching while refereeing.
  4. Are jewelry, taped earrings, or hard casts allowed?
    • No player may wear jewelry, earrings (taped or not), or hard casts during the match. These are considered dangerous for all players.
  5. Are Med‐Alert bracelets allowed?
  6. Where should the coaches be during the match?
    • In their respective technical area, at least 1 yard away from the touchline, between 1 yard and 10 yards from the halfway line.
    • Coaches are not to follow the play from goal line to goal line.
  7. Where should the spectators be during the match?
    • Spectators should remain on their side of the field and not to be behind the goal line or goals.
    • Coaches are responsible of addressing misbehavior by the audience.
  8. What are the specific rules for each category?

Refereeing U16 and older categories

16U and older categories use to schedule games. The minimum badge level for these games is Advanced, although U18 games strongly prefers referees with National badge.

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Contact Us

Foster City AYSO

PO Box 4270 
Foster City, California 94404

Email Us: [email protected]
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