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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 its next  course on July 13, 2019. The course 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