There is one assignor grade:

• Grade 8 – Assignor

Although there is only one grade, assignors service leagues and tournaments at a variety of competitive levels.
The State Director of Assignment is responsible for the coordination of the assignor network within the State Referee Association.  Local Assignment Coordinators for professional matches are selected by the U.S. Soccer Referee Department.

To become a certified assignor, one must complete the USSF Grade 8 Assignor course, pass the written test, and pass a background check.  They must renew their certification on an annual basis.  To become an assignor within Kentucky, you can complete these requirements at U.S. Soccer Learning Center.