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Mt Diablo Soccer Association AYSO Region 2/C/223

Refereeing with Mt. Diablo Soccer Association

Keeping the game safe, fair and fun!

Why should you become an AYSO Referee? We need you. We can't have games without referees. More importantly, it's rewarding and working with kids is great fun! 

Referees are critical to soccer - the game can't be played without them. The referee's job is to be the official in charge of the game. They are the independent arbiter and manager of the game. Their authority extends to everyone at the field, including players, substitutes, team officials, spectators, and even assistant referees.

But why should you do it? While everyone is welcome, refereeing is especially likely to appeal to you if you like being involved (you tend to get fidgety on the sidelines); enjoy sports, even strange ones (you wish you were playing, instead of just your kids); enjoy (or need!) physical activity (reffing is a great, light, regular workout); don't have quite enough time, patience or soccer skills to be a coach. If any of these describe you, you should give refereeing a try.
When you do, you'll find out that it’s fun! Especially at the younger age levels, refereeing is not particularly stressful.  Your role is to help the kids structure their game as soccer and, occasionally, to intervene to keep it fair.  Best of all, you get to be out on the field with the kids enjoying the game “up-close”, while everyone else has to watch from the touch-lines.


Referee Duties & Requirements

Mt. Diablo Soccer has a very clear philosophy - its games are to be played so that they are a safe, positive, enjoyable, growth experience for the children. However, this is not achieved by adopting idiosyncratic or peculiar rules. Our games follow standard international soccer (FIFA) Law very closely, with only a very few changes to adapt to AYSO philosophy (e.g. controlled substitution to ensure that “everyone plays”) and, at the youngest age levels, to adapt the game to the physical and mental maturity of the players.


As with all AYSO Volunteers, becoming a coach involves 3 easy steps:

  1. Registration
  2. Training
  3. Certification
  4. Scheduling

Step 1 - Register as a Volunteer with AYSO

  • When logged in to your account at, go to the Account section and select Volunteer from the menu
  • Select Find Volunteer Roles > Select Division/Program > Find Available Positions
  • Click Sign Up for all applicable roles, then Continue
  • Select the applicable family members from your family account
  • Complete the Volunteer Registration form for the current Membership Year (this must be submitted annually)
  • Submit the form using E-Signature
  • Complete Volunteer Background Check Consent Form
  • If any questions arise regarding your Background Check, you will be contacted by our CVPA.

Step 2 - Complete Mandatory Safe Haven & Concussion Training Online

  • Sign in to AYSOU using your MDSoccer account login.
  • Under My Courses, complete AYSO's Safe Haven course online (must be completed after 2013). It is a short course that outlines the important elements around protecting our children and volunteers.
  • Under My Courses, complete CDC: Concussion Course online.

Step 3 - Complete the applicable age-appropriate official AYSO Referee Certification

  • Register for the desired course on - pre-registration is encouraged, but walk-ins are welcome. To register, click on Live Courses, then Sessions next to Regional Referee Course. Locate the course you'd like to register for, and click the Register button.
    Please note: the easiest way to find the course is to use your browser's Find feature (typically Ctl-F (Windows) or Cmd-F (Mac) and search on MDSA.
  • Not sure if you have taken the courses previously?  You can view all your certifications under your account at MDSoccer.
Step 4 -  Sign up as a new referee on
  • Register on our RefScheduler system here.
  • Select AYSO > Section 2 > Area C > Region 223. Complete your profile and submit.
  • Once steps 1-3 have been validated, your account will be activated and you will receive a message for refscheduler.  Log in using the password you set up (you also received this on a message when you submitted your profile).  Contact [email protected] if you have password issues on your initial log in attempt.
  • This is where you will log in to sign up to referee games.

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Mt. Diablo Soccer Association

PO Box 21111 
Concord, California 94521

Email Us: [email protected]
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