Must be some NE Illinois code or something.

If my memory is accurate, the letters refer to 2 of the 3 levels of official ratings for the state. They are 1) registered, 2) certified, 3) ??. Just don't ask me the order of them. How'd I do, teach?? :D

I've Got A Secret ...
 

Isn't there a "code word" for the northeastern corner of Illinois?

When you first become an official in IL, you are an X. After a few years, you can be promoted to R by going through a process of getting some reference letters, taking another test and a few other things. When you have been an R for a few years you can be promoted to a C, the highest level we have here in IL. Again, there are a few things you have to do, but it isnt that hard. Once you are a C you have the ability to rate other officials on IHSA website. Also, in Chicagoland area, there are very few officials that are R that get playoffs, none that are X. Probably more than 95% are at C level. It isnt that hard to move up, mostly just put in a little time to do the stuff. Unfortunately, there are a good number of officials that dont take the time to go through the process and thus make themselves ineligible for playoff assignments.

Say The Secret Word ...
 

The secret code has been deciphered.