HELP! CSO Records Question!

[kittencaboodle]

So, I am working on getting all my ducks in a row to reduce child support and my husband went and retreived his CS Payment Records from the CSO.  

There are a few sub-types.  One is CHLD --Easy to understand.  There are 2 subtypes under that subtype...  CSUP -- I think that means Child Support...  And then there is POSAU...

WHAT THE HECK IS POSAU!?!?!

[wendl]

have dh call the cs office they will be able to tell him what each thing means.