Assignors should be selected by the affiliated competitions being served with advisement from the State Referee Committee.
Assignor appointments should be made for a period of at least one year and assignors should be familiar with the registration and certification processes for officials.
All USSF sanctioned games must be assigned by a certified assignor. This includes recreational, competitive youth, adult amateur, and professional games. A sanctioned game is defined as a game that includes a USSF member team or club playing another member team or club.
When an assignor is also a referee, they should not officiate in any competition where they also serve as an assignor (unless in an emergency situation).