- National Cancer Data Base (NCDB)
- National Cancer Institute (NCI)
- National Cancer Registrars Association (NCRA)
- National Cancer Registrars Association's Council on Certification
- National Institutes of Health (NIH)
- National Program of Cancer Registries (NPCR)
- NCI SEER Supports Cancer Registrars With A New Tool: The Glossary for Registrars
- North American Association of Central Cancer Registries, Inc. (NAACCR)
- Registry Plus Online Help
- Resources and Training Programs for Cancer Registrars
- SEER Casefinding tables
- SEER Coding and Staging Manuals
- SEER Information for Cancer Registrars
