TCEQ calculates the compliance history mass classification on Sept. 1 each year, which generates compliance history ratings and classifications for all applicable entities. By Nov. 15 these ratings and classifications are then published.
Customers and regulated entities are scored on their performance and assigned a corresponding rating and classification, which range from "High Performer" to "Unsatisfactory Performer". "Unclassified" indicates that there is no information on which to base a rating.