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AYSO San Mateo Region 36


Welcome San Mateo Region 36 Referees

Each fall season, we need 300+ referees helping over 1,600 players from ages 5 to 19 play soccer. We invite parents and youths (12 year old or over) to serve as AYSO referees. Youth referees may satisfy middle or high school community service requirements by volunteering to referee AYSO games. No prior experience or knowledge of the Laws of the Game is required. All volunteers are trained, certified, equipped, and mentored to be great referees!

Each 6U and 8U team needs to have at least 2 team referees. Details on how to become a 6U/8U Referee for your child's team are on the 6U-8U Divisions page under Registration and Training.

Each 10U and 12U team needs to have at least 2 team referees. Details on how to become a Regional Referee for your child's team are on the 10U-19U Divisions page under Registration and Training.

Referees who wish to officiate at 14U or higher are highly encouraged to upgrade their referee badge level. Details are on the 10U-19U Divisions page. 

Latest Updates, as of November 18, 2021

10U/12U Regional Tournament Rules

  1. 10U Regional Tournament Rules
  2. 12U Regional Tournament Rules

Referee Registration

  1. Want to help your child play better and be involved in their development? Check out the Registration and Training section below for more details and follow the Referee Volunteer Registration step-by-step guide.


  1. All volunteers must take Safe Haven (if you did not take it in 2020 or in 2021) and CDC Concussion and Sudden Cardiac Arrest Online Courses (if you have not taken them before) at AYSOU ( Make sure to save your certificates of completion (screenshot or take a picture). See the Registration and Training section below for details on how to find the online training courses.
  2. New 6U-8U referees? Go to our 6U-8U Divisions page for the class schedule. All classes will be at Beresford Park (2720 Alameda de las Pulgas), sheltered picnic area just West of the tennis courts and North of basketball court. Nearest parking is on the street on Parkview Way or 27th Avenue.
  3. New Regional (10U-12U) Referees? After taking your Regional Referee online course at, details at 10U-19U Divisions page for where you can go for field training.
  4. Want to improve your referee skills? Upgrade to Intermediate, Advanced, and National Referee certifications.

Signing up for Matches

  1. For 10U through 14U, all certified and trained referees may sign up for specific matches at If you do not have an account on the referee website, please contact William at [email protected]
  2. For 16U and 19U, referees sign up at Please contact [email protected] if you wish to officiate at 16U/19U matches.

Law Changes and Referee Guidance

  1. The 2021-2022 IFAB Laws of the Game are available at the IFAB website.
  2. 6U-8U Referee cheatsheets: get them from our 6U-8U Divisions page, under Resources.
  3. 10U-12U Referee guidance: get a 2-page summary for referees officiating in the 10U and 12U Divisions on our 10U-19U Divisions page, under Resources.
  4. What's the Build-out Line on the 10U fields? Video: applying the build-out line in 10U matches
  5. 14U: Unlimited substitutions. At the discretion of the Referee, EITHER team may substitute during a stoppage in play. Substitutes must be ready to enter the field, at the halfway line, before play has stopped and enter the field only when beckoned by the referee.

Registration and Training

All referee volunteers must follow the following three steps in order to referee.

STEP 1: Register as a volunteer in the National AYSO database.
  • Please visit and select the Register Now button (if you have not registered before in Sports Connect) or Login button and register as a volunteer for this season.
  • A parent must submit the application for a youth volunteer. The youth volunteer will need their own Sports Connect user account.
  • Instructions are available on our Referee Volunteer Registration page.
STEP 2: Complete the following online classes at AYSO University.
  • AYSO Safe Haven training - at least every two year
  • AYSO CDC Concussion Awareness training - at least once
  • Sudden Cardiac Arrest training - at least once

You will need to login using your AYSO Sports Connect username/password. The three online courses are under the top-level menu "Online Courses" and Open the "Safe Haven Courses".

STEP 3: Take the age-appropriate referee course, if you have not taken it before.


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Contact Us

San Mateo Region 36

P.O. Box 5316 
San Mateo, California 94402

Email Us: [email protected]
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