Registry certification is conducted annually for the most recent year of incidence data, to identify registries that have complete and accurate data to compute complete and accurate incidence statistics. In 1997, the NAACCR instituted a program to independently and annually review the data from member registries for their completeness, accuracy, and timeliness. The registry certification metrics are pre-determined and established by NAACCR. The sole purpose of the review is to indicate that the data from the year are of sufficiently high quality to use in the calculation of standard incidence statistics (i.e., for specific cancer types and for sub-state/province area [county] by sex, race, and age within the registry jurisdiction). Cancer registries are recognized annually for their reaching either a Silver or Gold Standard for Registry Certification.