The Trillium Geolocation Server and Trillium Geolocation Batch Server return Address Correction Result (ACR) codes, Enhancement Level (EL) codes for how the geocode (latitude/longitude coordinate pair) applied to the dataset was derived and its level of precision, Name Correction Result (NCR) codes indicating processing status of the name component fields, and Match Key codes describing the address component field data used to generate the match key.