When I submit my NSG export to Geoplace, it fails with error LG12.005 - ESU cross references to type 11 Street Record RECORD_TYPE = 3 or 4 must also be cross referenced to a type 11 Street Record RECORD_TYPE = 1 or 2 with a matching STATE.
The compliance check errors that Geoplace supply also give details of each record causing the error. In this case it's a type 12 record which gives the ESU ID and the USRN of the street it belongs to.