classification/rating

[umpduck11]

I was wondering whether any states have an umpire's
classification or his rating tied to his game pay?
In Alabama,you start out as a class 1,and can
subsequently test to move up in classification. I have
been told that within three years, there will be a
different pay scale for each class.
As I understand it,this is not a Federation endeavor,
but one from the state of Alabama.