National Cancer Registrars Association (NCRA), Council on Certification · 2026 Exam Handbook, dated December 2025; currently adopted content outline updated December 2, 2022, used beginning in 2023; 2026 examination references updated December 16, 2025. NCRA renamed Certified Tumor Registrar (CTR) to Oncology Data Specialist (ODS), with implementation beginning January 1, 2024. The assigned CTR slug is preserved for this same renamed credential and examination.

This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.

• NCRA: Are You a Credential Holder?
• NCRA: ODS Exam
• 2026 Exam Handbook & Candidate Application
• ODS Certification Exam Content Outline
• References for ODS Certification Examinations in 2026
• NCRA Professional Practice Code of Ethics
• HHS: Patient Permission and Reporting to Public Health Authorities
• HHS: Does the Public Health Provision Require Disclosures?
• SEER Training: Population-Based Registries
• SEER Training: Casefinding Audits and Process Improvement
• SEER Training: Assessing Completeness
• SEER Training: Casefinding Introduction
• SEER Training: Pathology Reports
• SEER Training: Follow-Up Requirements
• NIST: Measures of Location
• CDC Field Epidemiology Manual: Analyzing and Interpreting Data
• NCI: Metastatic Cancer—When Cancer Spreads
• NCI: Pathology Reports
• NCI: Biomarker Testing for Cancer Treatment
• SEER: Solid Tumor Rules
• SEER: Summary Stage 2018
• Summary Stage 2018 Coding Manual, Version 3.4
• SEER Training: SEER Summary Stage
• American College of Surgeons: AJCC Staging Rules
• Standards for Oncology Registry Entry: STORE 2025
• SEER Inquiry System: Question 20230010
• November 2024 Revision History for the Solid Tumor Rules
• December 2025 Revision History for the Solid Tumor Rules
• SEER Inquiry System: Question 20260004
• AJCC Cancer Staging Rules: 8th Edition