.spoke-cta{margin:24px 0}a.btn-join{display:inline-block;background:#2b6cb0;color:#fff!important;padding:12px 20px;border-radius:8px;font-weight:600;text-decoration:none;line-height:1.4}.spoke-q>li{margin:0 0 22px}.spoke-q ul{margin:6px 0 6px 18px}.spoke-table{border-collapse:collapse;width:100%;margin:18px 0}.spoke-table th,.spoke-table td{border:1px solid #d6dee8;padding:8px 12px;text-align:left;vertical-align:top}.spoke-table thead th{background:#f0f5fa}.spoke-sources{margin-top:32px;padding-top:16px;border-top:1px solid #e2e8f0;font-size:.92em;color:#4a5568}.spoke-sources a{word-break:break-word}
The CBCN costs $296 for ONS members and $416 for non-members, with senior
discounts available. Here’s the cost picture, per ONCC.
How much does the CBCN cost?
| Status | Exam fee |
|---|---|
| ONS member | $296 |
| Non-member | $416 |
| Member, age 65+ | $225 |
| Non-member, age 65+ | $315 |
ONS membership lowers the fee and includes oncology education resources, so it’s worth comparing
before you apply.
How to register, step by step
- Confirm eligibility. Verify your license, RN experience, breast-care hours, and CE.
- Apply through ONCC with the fee.
- Receive your testing window and schedule your computer-based exam.
- Test. 165 questions, 3 hours.
Unlock 2,100+ CBCN practice questions across 15 full-length simulators — $19.99 lifetime →
Sources & references
The exam facts on this page are drawn from official certifying-body materials, reviewed 2026-06-18 by the DrCertifications exam-prep team (10+ years in exam preparation and publishing).