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Important Referee Docs


Important Ref Links

CNRA - California North Referee Association

NorCal Premier Soccer League

NPL - National Premier Leagues

US Club Soccer

FIFA - Federation Internationale de Football Association

US Soccer Federation


To become an IMPACT referee, you must be licensed. To become licensed, you must attend one 9-hour referee course and complete a take-home exam after the course (must be completed within one week from class with a score of 80% or better.) IMPACT is offering two courses in 2019. Our first referee course is scheduled for Saturday, March 9. We will be hosting our second course on July 13. The courses will be held from 8:00 am - 5:00 pm. Registrants must attend the entire day. Registrants should be at least 13 years old.  You must pay $75 to attend the course (we prefer you pay online when you sign up for the course.

To register:

For more information, visit the Impact Ref page on the Impact website or contact:


Referee game assignments are managed via the Refscheduler ( Officials or those looking to become officials and are interested to receive communications about our referee news and updates, you are encouraged to register onto

To register:

  • Go to browser and type in
  • Click on USSF button - Click Continue
  • Select State: will default to CA-N - Click Continue
  • Select District: Click drop down arrow, click 4 - Click Continue
  • Select your Club/League: Click Login" with "Select your Club/League: Click drop down arrow, click ISC - Impact Soccer Club, and then click Login"
  • Click on New Referee Sign-UpClick Submit New Referee Request
    • Please fill out the required fields that are identified with a * .
    • Note: ZIP Code is also a required field.
  • IMPACT Soccer Club Referee administrators will receive your request and approve accordingly

Impact Referee Administrators

Bob Sabella -, (925) 642-2141

Alex Kos -, (925) 813-8725

2018 IMPACT Referee End of Year Gathering