- Which NO This Is and How the Exam Is Built
- The Four Domains and Their Weights
- Domain 1 Cheat Sheet: Adult Primary Nervous System Tumors (35%)
- Domain 2 Cheat Sheet: Pediatric Primary Nervous System Tumors (25%)
- Domain 3 Cheat Sheet: Metastatic Cancer to the Nervous System (15%)
- Domain 4 Cheat Sheet: Systemic Cancer-Related Neurologic Disorders (25%)
- Scheduling and Fees: The Facts That Trip People Up
- Eligibility: Four Alternative Routes, Pick One
- Test-Day Logistics at a Glance
- After You Pass: Continuous Certification (C-cert)
- Sequencing Your Review Around the Weights
- Frequently Asked Questions
- The initial NO exam is 200 multiple-choice questions in four hours, split into two parts with a 15-minute break.
- Adult tumors carry 35%; pediatric tumors and systemic cancer-related disorders carry 25% each; metastatic disease carries 15%.
- The initial exam runs only in odd-numbered years, so there is no 2026 sitting; the next is December 6-10, 2027.
- Fee sources conflict ($1,700 on UCNS fee pages versus $2,200 in the store), so verify your own invoice.
Which NO This Is and How the Exam Is Built
In this cheat sheet, "NO" means one thing: the Neuro-Oncology Certification offered by the United Council for Neurologic Subspecialties (UCNS). It is a physician subspecialty credential. It is not a nursing oncology certificate, not an ABPN neurology examination, and not a medical-oncology board certificate. If you need the broader orientation first, start with What Is NO Certification? and then return here for the one-page review.
| Item | Must-know fact |
|---|---|
| Certifying body | UCNS (exam product identifier EX_NO_I) |
| Length | 200 multiple-choice questions, four hours |
| Structure | Two parts, 15-minute structured break between them, closed book |
| Navigation | After you submit a part, you cannot return to it |
| Scored vs. pretest split | Not publicly specified in the retrieved official materials |
| Passing score | A numerical initial-exam passing score is not verified; UCNS describes expert standard setting and post-exam psychometric review |
| Results | Arrive after processing, not immediately |
| Testing options | Meazure Learning test centers or live online proctoring through ProctorU |
Because the passing score is not published as a number, treat any "you need X correct" claim with skepticism. For a deeper look at what is and is not known, see NO Passing Score 2026: Exactly What You Need to Pass.
The Four Domains and Their Weights
The currently linked content outline is dated October 10, 2018. It is not a newly issued 2026 blueprint, so use it as the best available scope document while remembering its age. It defines four weighted categories:
| Domain | Weight |
|---|---|
| Domain 1: Adult Primary Nervous System Tumors | 35% |
| Domain 2: Pediatric Primary Nervous System Tumors | 25% |
| Domain 3: Metastatic Cancer to the Nervous System | 15% |
| Domain 4: Systemic Cancer-Related Neurologic Disorders | 25% |
One quirk worth knowing: the detailed section heading for Domain 4 reads "Systemic Cancer-Related Neurologic Disorders," while the outline's summary table prints "Systematic Cancer-Related Neurologic Disorders." It is an internal wording discrepancy in the document itself, not a different domain, and the topics beneath it are what matter. For a longer treatment of all four areas, see NO Exam Domains 2026: Complete Guide to All 4 Content Areas.
Domain 1 Cheat Sheet: Adult Primary Nervous System Tumors (35%)
This is the largest slice of the exam, so errors here cost the most. The outline organizes both tumor domains the same way: diagnosis first, then therapy.
Diagnostic methods
Expect questions that ask you to interpret the workup, not just recall a diagnosis.
- Clinical history and examination
- Laboratory testing
- Imaging
- Neuropathology
- Other neurodiagnostic procedures
Therapy
The outline covers standard, experimental, and medical neuro-oncologic therapies.
- Know what is standard of care versus what is investigational
- Be ready to connect a pathology or imaging finding to a management decision
- Review the adverse-effect profiles of agents you would actually prescribe
Because this domain is worth 35%, build your longest review block around it, and make neuropathology and imaging interpretation a recurring theme rather than a one-time pass.
Domain 2 Cheat Sheet: Pediatric Primary Nervous System Tumors (25%)
Pediatric tumors mirror the adult structure: diagnostic methods (history and examination, laboratory testing, imaging, neuropathology, other neurodiagnostic procedures) and standard, experimental, and medical neuro-oncologic therapies. At 25%, it is weighted the same as systemic cancer-related disorders and is far too large to treat as an afterthought.
Domain 3 Cheat Sheet: Metastatic Cancer to the Nervous System (15%)
The smallest domain, but a compact and highly testable one. The outline's scope includes:
- Brain and spinal cord metastases
- Skull base disease
- Leptomeningeal disease
- Epidural disease
- Plexus and peripheral nerve disease
- Spinal cord compression
Spinal cord compression is the kind of topic where an exam writer can test urgency and sequencing of decisions, so be able to articulate the recognition-to-treatment pathway clearly. Because this domain is only 15%, it is a good place to pick up reliable points with efficient review rather than exhaustive study.
Domain 4 Cheat Sheet: Systemic Cancer-Related Neurologic Disorders (25%)
This domain is the widest in terms of topic variety, which is why it catches candidates who focus only on tumor biology. The outline lists:
Encephalopathies, infections, and vascular disease
- Toxic, nutritional, and metabolic encephalopathy
- Central and systemic infections
- Cerebrovascular disease
- Venous thrombosis
Hematologic and supportive care
- Blood products and growth-factor support
- Neutropenia, thrombocytopenia, and anemia
- Transplantation-related neurologic complications
Treatment effects and symptom control
- Paraneoplastic syndromes
- Adverse effects of surgery, drugs, and radiation
- Seizures and raised intracranial pressure
- Pain and headache care
- Palliation and end-of-life care
Note that palliation and end-of-life care sit inside a scored domain. Do not skip them on the assumption that the exam is purely about tumor diagnosis and chemotherapy.
Scheduling and Fees: The Facts That Trip People Up
There is no 2026 sitting
The initial exam runs biennially in odd-numbered years. That means 2026 has no initial NO exam. The next published sitting is December 6-10, 2027. The published timeline for that cycle:
- Applications open March 1
- Standard deadline: June 1
- Extended deadline: June 15, with a $500 late fee
- Approved candidates schedule their appointment between July 19 and November 22
Plan your calendar from these windows, and see NO Exam Dates 2026: Testing Windows, Deadlines & Scheduling for more on how the cycle works.
Fees: a genuine source conflict
One concrete discount is documented: eligible graduates of UCNS-accredited fellowships receive a $250 discount when they apply within 48 months of completion, provided the program was accredited at the time they completed it. For more on budgeting, see NO Certification Cost 2026: Complete Pricing Breakdown.
Eligibility: Four Alternative Routes, Pick One
Everyone must meet the general requirements, then complete one of four alternative routes. They are credentialing pathways, not additional exams, and you do not complete all four.
General eligibility
- Qualifying ABMS certification in neurology, child neurology, neurological surgery, internal medicine AND medical oncology, pediatrics AND pediatric hematology-oncology, or radiation oncology (or equivalent AOA/RCPSC certification)
- Current unrestricted licensure in the United States, its territories, or Canada, and in each jurisdiction of practice
| Route | Core requirement |
|---|---|
| 1. UCNS-Accredited Fellowship | At least 12 months of NO fellowship; apply within 48 months of completion; director verification or completion certificate |
| 2. Practice Track | At least 36 months after residency with at least 25% of professional time in NO (US, territories, or Canada) within the prior 60 months, plus one additional training/CME/academic element |
| 3. Academic Appointment at a UCNS-Accredited Training Program | Full-time faculty appointment teaching NO fellows, department-chair verification, plus the practice-time and practice-pattern requirements |
| 4. Internationally Trained Faculty at UCNS-Accredited Programs | Active program-director/faculty appointment or written offer; chair verification that passing the next available exam is a condition of appointment; documentation of the required practice period within the preceding 60 months |
Route details worth memorizing
Route 1: Fellowship timing
- A fellow applying before completion must finish at least 25 days before exam week
- Confirmation of completion must be received within 20 days of completion
Route 2: Practice Track extras
- The 60-month window is measured to the application deadline or August 31, whichever is later
- Two physician letters together cover the full practice interval
- Non-accredited subspecialty training can count toward the interval
- You must also satisfy ONE of: at least 12 months of formal non-accredited post-residency NO training with program verification; at least 50 AMA PRA Category 1 NO-specific CME hours in the prior 60 months; or a full-time academic appointment teaching NO to medical students, residents, or fellows with a department-chair letter
Route 4: International credentials
- Permits a medical diploma from a World Directory of Medical Schools institution
- Requires primary-specialty certification by a competent foreign board approved by the Certification Council
- Requires valid US/territorial/Canadian medical licensure
UCNS template letters apply across routes. For the full walkthrough, read NO Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Test-Day Logistics at a Glance
- Closed book. No reference materials.
- Two parts, one 15-minute break. Once you submit a part, you cannot go back, so use your review time within a part before submitting.
- Remote candidates: complete the equipment and workspace checks, use the required Guardian browser, and allow extra appointment time for setup and the break beyond the four-hour exam itself.
- Center candidates: follow the Meazure Learning test-center instructions published by UCNS.
- Results: expect them after processing, not on the screen when you finish.
Key Takeaway
Pacing matters because part boundaries are final. Practice answering a long block of questions without the ability to return, so the lock-in at submission does not surprise you on exam day. For a sense of how demanding the format is overall, see How Hard Is the NO Exam? Complete Difficulty Guide 2026.
After You Pass: Continuous Certification (C-cert)
The legacy ten-year renewal model is not the current rule. Validity is maintained through annual Continuous Certification (C-cert), which begins the calendar year after initial certification.
| C-cert element | Requirement |
|---|---|
| Prerequisites | Maintain required primary board certification and unrestricted license |
| Reading | Read the annual list of up to ten articles/guidelines |
| Fee | $175 annual fee per subspecialty ($150 if paid by June 1) |
| Quiz | Pass that year's quiz by December 31 |
| Consequence | Two consecutive years of noncompliance lead to loss of certification |
No additional UCNS CME-hour reporting is required beyond C-cert, although your primary-board CME obligations remain separate, and completing the activity can earn CME. For the bigger picture of what the credential does for a career, see Is the NO Certification Worth It? Complete ROI Analysis 2026.
Sequencing Your Review Around the Weights
Since the next initial sitting is not until December 2027, you have time to structure a deliberate plan. Rather than a generic schedule, order your blocks by weight and by where your training is thinnest. A sample ordering tied to this exam:
Domain 1: Adult tumors (35%)
- Longest block; cycle through diagnostics, then therapy
- Pair neuropathology with imaging so you learn to integrate them
Domain 2: Pediatric tumors (25%)
- Same diagnostics-then-therapy structure, studied as its own entity
- Give extra time here if your training was adult-focused
Domain 4: Systemic cancer-related disorders (25%)
- Widest topic list; make a checklist from the outline and tick items off
- Include palliation and end-of-life care
Domain 3: Metastatic disease (15%)
- Compact review: brain, spine, skull base, leptomeningeal, epidural, plexus/nerve, cord compression
- Finish with mixed, full-length timed practice across all four domains
For a fuller approach to preparation, see NO Study Guide 2026: How to Pass on Your First Attempt, and use the NO Exam Prep practice tests to check yourself against domain-by-domain question sets. Adjacent resources such as the Society for Neuro-Oncology review course materials, a 2023 multiple-choice neuro-oncology text from Springer Nature, or adult-tumor lessons on third-party platforms may help with content, but they are not complete or current UCNS exam coverage, so measure them against the outline above. When you are ready to test your recall against the exam's format, work through the timed practice questions and review every miss by domain.
Frequently Asked Questions
No. The initial exam runs biennially in odd-numbered years. The next published sitting is December 6-10, 2027, with applications opening March 1 of that year. Use 2026 for preparation and application planning.
Sources conflict. The UCNS fee schedule and FAQ publish $1,700 total ($680 nonrefundable application plus $1,020 examination), while the exact NO store product displays $2,200. The official pages do not reconcile the two, so verify the amount on your application invoice. Eligible fellowship graduates applying within 48 months may receive a $250 discount.
A numerical initial-exam passing score is not verified; UCNS describes expert standard setting and post-exam psychometric review. Official statistics report an 85% historical average initial NO pass rate, but with no disclosed cohort range or denominator, and it is not a 2025 or 2026 rate. See NO Pass Rate 2026: What the Data Shows for context.
No. You complete one of four alternative routes (fellowship, practice track, academic appointment, or internationally trained faculty), in addition to the general board-certification and licensure requirements. They are credentialing pathways, not additional exams.
No. The C-cert quiz is a separate 25-question, 100-minute, open-article, unproctored activity with an 80% requirement and up to three attempts. The initial exam is a closed-book, 200-question, four-hour, two-part test with a 15-minute break.