The MCD (Minor Civil Division) code, located on the Referring/Receiving section is used for PA customers for locations in WV, OH, and PA.
There is a problem for automatic populated locations where the MCD list will not load. If you see a blank MCD list for a location in WV, OH, or PA, please re-select the COUNTY (not country) and the MCD list will populate. We are aware of this issue and are getting it corrected. Thanks!