For the purposes of reporting to state registries, a diagnosis year is the date of the initial diagnosis by a recognized medical practitioner for the tumor being reported.
NPCR provides funds to 45 states, 3 territories, and the District of Columbia to assist in planning or enhancing registries; develop model legislation and regulations for programs to increase viability of registry operations; set standards for data quality, completeness, and timeliness; provide training for registry personnel; and help establish computerized reporting and data processing systems. SEER covers the remaining five states.
NPCR supported registries are expected to meet CDC data standards, as well as incorporate standards for data quality and format as described by the North American Association of Cancer Registries. Additional information on the standards for completeness, accuracy, and timeliness of central registry reporting, can be found on the CDC cancer web site.