The referee may not change a decision on realizing that it is incorrect if play has restarted or the referee has signaled the end of the first or second half and left the field of play or terminated the match.
• Has the power to show yellow and red cards from entering the field at the start of the match until after the match has ended, including during half time.
• If before entering the field at the start of the match a player commits a sending off offense, the referee has the authority to prevent the player from taking part in the match. see Law 3.6).
USSF Referee Grade 15 Emeritus
USSF Referee Instructor
USSF Referee Assessor
USSF Referee Assignor
District-7 Youth Referee Administrator (DYRA)