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• Laws of the Game Summary Sheet
•  Match Walkthrough for New (U8) Referees & First-time ARs
•  Match Tips for U10 Referees
• Player Development Initiatives (PDI) in AYSO, 2019-20
•  Game Card Instructions
•  Referee Wallet Match Report Card Instructions
•  AYSO Referee Pocket Guide Tri-fold
•  Ref Wallet Cheat Sheets for Pre-Game Chat & Penalty Kicks
•  Direct and Indirect Free Kick Cheat Sheet
• Offside Cheat Sheet  

Basic

• AYSO Referee Guideline (56 pages; provided at Regional class, formerly "AYSO Guidance for Referees, Coaches, Other Volunteers and Parents")
• AYSO National Referee Program Manual
• IFAB Laws of the Game 2024/25 
  
• IFAB Football Rules Simplified Laws of the Game (88 pages) NEW
  
• 20/21/22 Law changes relevant to AYSO (27 slides)
  
• Player Development Initiatives (PDI) in AYSO, 2019-20 (34 slides)
  
•  IFAB Practical Guidelines for Match Official s 2022/2023  (30 pages; helpful position/offside diagrams)
  
• USSF Guide to Procedures (44 pages; 2013, no longer updated but good info on cooperation, positioning)
  
• FIFA Assistant Referee slides (42 slides)
  
• Offside Training by USSF (56 slides) NEW
  
• Offside Review "What If???" by USSF (23 slides) NEW
  
• Positioning: How to be in the right place, at the right time (59 slides) NEW
  

Youth Referees

• AYSO Youth Referee Manual (6 pages)
  
• Laws of the Game Simplified (55 pages; cartoons; great for young refs and players)
  
• Offside Made Easy (35 pages; with cartoons; great for young refs and players)
  

Short References

• When and How to Caution (Yellow Card) a Coach NEW
  
• USSF Tips for Having a Good Game (5 pages) NEW
  
• Santa Monica AYSO Referee Corner (nice AYSO commentary on each of the Laws)
  
• Advice for New Referees (webpage)
  
• Tips on Being a Great AR (2 pages)
  
• Are sliding tackles permitted in AYSO games? (1 page)
  
• Sample Referee's Pre-Game Instructions (2 pages)
  
• USSF Cautionable and Sending-Off Offenses summary (3 pages)
  
• Ask, tell, dismiss (webpage)
  
• 10 tips for player dissent (webpage)
  
• 10 tips for coach dissent (webpage)
  

AYSO Referee Badge Level Upgrade

• AYSO Sample Intermediate Referee Exam
  
• AYSO Sample Advanced Referee Exam
  
• AYSO Referee Assessment Checklist
  
• AYSO Assistant Referee Assessment Checklist
  
• U.S. Soccer Focus Criteria

• Lineup card instructions for referees [Region 1] (YouTube, 06:44)
• Build out Line (PDI) 2019 update (YouTube, 07:59)
• Everything MatchTrak (YouTube, playlist)
• PRO's Inside Video Review for MLS (YouTube, playlist)
• Advice to New Referees (YouTube, 23:10)
• Advice to New Referees: Being the Referee (YouTube. 03:54)
• Referee Signals (YouTube, 07:12)
• Advice to New Referees: Being an Assistant Referee (YouTube, 03:56)
• Assistant Referee Signals (YouTube, 10:24)
• Assistant Referee Positioning (YouTube, 14:53)
• Law 11: Offside (YouTube, 05:17)
• Law 12: Fouls and Misconduct (YouTube, 25:01; covers all direct & indirect plus cautions/sendoffs)
• California North Referee Association YouTube Channel (hour-long topics)
• Fair (shoulder) Charging (YouTube, 1:30)
• IFAB Law Clarifications 2021/22(excellent videos on handball)
• When and How to Caution (Yellow Card) a Coach or spectators (YouTube, 13:40)NEW