In general, U-12 games are played without changes to the FIFA Laws of the Game Printed for the American Youth Soccer Organization except for the following for U-12:
The field size for U-12 games is 100 yds long and 50 yds wide (max).
A size 4 ball is used for U-12 games.
There will be nine (9) players per team on field; one of which is a goalkeeper. Twelve (12) players maximum on roster.
Shoes and shinguards, covered by the socks are mandatory at all practice and game activities. Soft-cleated soccer shoes or tennis shoes.
TWo (2) 30-minute halves with a substituion break approximately halfway through each half at a normal stop in play (such as goal kick, kickoff or throw-in). Halftime break of 5-10 minutes.
Substitutions are 1-2 minutes in length. Substitutions can be made halfway through each half, at halftime and for injuries. Playing time is a minimum of two periods per game and no player should play four periods until everyone has played three.
The referee must be a certified AYSO Basic Referee or above. An AYSO Intermediate referee is recommended.