The North American Association of Central Cancer Registries, Inc. (NAACCR, Inc.), is a professional organization that develops and promotes uniform data standards for cancer registration; provides education and training; certifies population-based registries; aggregates and publishes data from central cancer registries; and promotes the use of cancer surveillance data and systems for cancer control and epidemiologic research, public health programs, and patient care to reduce the burden of cancer in North America. This web-site is supported in part by Cooperative Agreement Number 1U58DP001803 from CDC. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of CDC.