- AD is a UCNS subspecialty exam: 200 MCQs, four hours, split across four equally weighted domains.
- Standard fee is $1,700 ($680 application + $1,020 exam); fellowship applicants save $250.
- 2026 testing window is December 7-11; extended applications closed July 1.
- UCNS reports a 95% historical average pass rate and 100% for both groups in 2024 - historical, not guaranteed.
What AD Certification Actually Is
Autonomic Disorders Certification (AD) is a subspecialty credential administered by the United Council for Neurologic Subspecialties (UCNS). It is not a generic wellness or industry acronym - in this context, AD refers specifically to autonomic disorders certification for neurologists and qualified physicians who diagnose and manage conditions affecting the autonomic nervous system. Testing-center delivery and live virtual proctoring are handled through Meazure Learning, using ProctorU with Guardian for remote candidates.
This cheat sheet condenses the essential facts you need before test day: domain weighting, fee structure, eligibility routes, the 2026 calendar, and the C-cert renewal cycle. If you want the long-form version of any section, pair this page with the full AD Study Guide 2026: How to Pass on Your First Attempt and the detailed AD Exam Domains 2026: Complete Guide to All 4 Content Areas.
Domain Snapshot: The Four 25% Blocks
The current content outline, last revised June 5, 2020, splits the 200-question exam into four domains, each weighted equally at 25%. That even split matters strategically - you cannot afford to neglect any single domain, because each one carries the same point value as the others.
Domain 1: Basic Science (25%)
Covers the physiology and anatomy underlying autonomic function.
- Central and peripheral autonomic pathways
- Neurotransmitter systems governing sympathetic/parasympathetic balance
Domain 2: Laboratory Evaluation of Autonomic Function (25%)
Tests your command of the diagnostic toolkit used to quantify autonomic dysfunction.
- Autonomic function testing methodology and interpretation
- Recognizing normal vs. abnormal response patterns on lab studies
Domain 3: Clinical Autonomic Disorders (25%)
The disease-recognition core of the exam - matching presentations to diagnoses.
- Primary and secondary autonomic syndromes
- Differentiating overlapping clinical presentations
Domain 4: Clinical Management (25%)
Applies knowledge from the other three domains to real-world treatment decisions.
- Pharmacologic and non-pharmacologic management strategies
- Longitudinal care planning for chronic autonomic conditions
For a deeper breakdown of subtopics inside each domain, see AD Exam Domains 2026: Complete Guide to All 4 Content Areas. If you're still assessing overall difficulty before committing to a study plan, How Hard Is the AD Exam? Complete Difficulty Guide 2026 walks through that in more depth.
Exam Format & Day-Of Logistics
The initial AD exam is 200 multiple-choice questions administered within a four-hour limit. Passing is determined through criterion-referenced standard setting - meaning the passing threshold is fixed to content difficulty rather than a moving curve. For specifics on how that threshold is set, review AD Passing Score 2026: Exactly What You Need to Pass.
- Closed book: Initial testing does not permit outside references.
- One break: Up to 15 minutes, positioned between the two halves of the exam.
- No backtracking: Once you move past a question, you cannot return to it.
- Virtual candidates: An online calculator is provided during remote testing sessions.
Key Takeaway
Because there is no return-to-question option, pace yourself domain by domain rather than saving "hard ones" for later - treat each block of roughly 50 questions as its own mini-exam.
Fees, Eligibility Pathways & Deadlines
Budgeting for AD certification involves more than one line item. The standard initial fee is $1,700, composed of a nonrefundable $680 application fee plus a $1,020 examination fee. Eligible applicants coming from a UCNS-accredited fellowship receive a $250 discount, bringing their total to $1,450. Extended applications (filed after the standard deadline) add $500, and reexamination costs $1,020. A full cost comparison lives at AD Certification Cost 2026: Complete Pricing Breakdown.
| Fee Component | Amount |
|---|---|
| Application (nonrefundable) | $680 |
| Examination | $1,020 |
| Standard total | $1,700 |
| Fellowship-discounted total | $1,450 |
| Extended application add-on | +$500 |
| Reexamination | $1,020 |
Three Eligibility Pathways
Eligibility criteria, updated December 11, 2025, require qualifying primary board certification, active medical licensure, and one of the following routes:
- Accredited fellowship route: At least 12 months of AD training, with application required within 48 months of completing the fellowship.
- Practice track: 36 months of practice with at least 25% AD-focused practice within a 60-month window, two physician verification letters, plus an additional qualifying component - further training, 50 hours of AD CME, or academic teaching.
- Academic-appointment or internationally trained faculty pathway: An alternate route for qualified faculty candidates.
Every detail of these pathways, including documentation specifics, is covered in AD Requirements 2026: Eligibility, Prerequisites & How to Qualify.
2026 Exam Window & Scheduling
Mark these dates now - AD is offered only in even-numbered years, so missing this cycle means waiting until the next one.
- Application deadline: June 15, 2026
- Extended deadline: July 1, 2026
- Scheduling window for approved candidates: July 20 - November 23, 2026
- 2026 testing window: December 7 - 11, 2026
For a printable timeline with every milestone, see AD Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Continuous Certification (C-cert) Cheat Sheet
Certification does not end at the pass notification. UCNS requires annual Continuous Certification (C-cert) starting the year after your initial pass.
- Format: Designated readings plus a 25-question, 100-minute quiz that is open-reference.
- Passing threshold: At least 80%, with a maximum of three attempts per cycle.
- Completion deadline: December 31 each year.
- Fee: $175 per subspecialty, discounted to $150 if paid by June 1.
Because C-cert is open-reference and shorter than the initial exam, it rewards candidates who keep clinical notes organized year-round rather than cramming in December.
One-Week Rapid Review Map
If you already have foundational knowledge and just need a structured final push, distribute review across the four equally weighted domains rather than defaulting to a generic study template. This is a compressed version of the fuller plan in the AD Study Guide 2026: How to Pass on Your First Attempt.
Basic Science
- Rebuild autonomic pathway diagrams from memory
- Drill neurotransmitter mechanisms tied to sympathetic/parasympathetic control
Laboratory Evaluation
- Practice interpreting autonomic function test outputs
- Compare normal vs. abnormal response patterns across test types
Clinical Autonomic Disorders
- Build a differential-diagnosis matrix for overlapping syndromes
- Focus on distinguishing features between similar presentations
Clinical Management
- Review management algorithms tied to each disorder from Domain 3
- Do a full timed mock covering all four domains equally
Because each domain is worth exactly 25%, resist the urge to over-invest in whichever topic feels most familiar. Even score distribution across domains is the surest path to clearing a criterion-referenced threshold.
Who Actually Hires AD-Certified Physicians
AD certification signals subspecialty depth in diagnosing and managing autonomic nervous system disorders - a niche area within neurology. Physicians who complete the credential typically practice within academic neurology departments, autonomic/dysautonomia referral clinics, and multidisciplinary programs that manage conditions spanning orthostatic intolerance, neurodegenerative autonomic failure, and related syndromes. For a broader look at how this credential fits into career trajectories and compensation discussions, see AD Salary Guide 2026: Complete Earnings Analysis and AD Jobs.
If you're still deciding whether the time and fee investment make sense for your career stage, Is the AD Certification Worth It? Complete ROI Analysis 2026 walks through the considerations without relying on invented figures.
Key Takeaway
Use this cheat sheet as a final-week reference, not a first-pass study tool - pair it with full domain review and timed practice on the main practice test platform before exam day.
FAQ
Here, AD refers specifically to Autonomic Disorders Certification, a UCNS subspecialty credential. See What Does AD Stand For? and AD Meaning for a full explanation.
The initial exam has 200 multiple-choice questions with a four-hour time limit, split evenly across four domains.
The standard initial cost is $1,700 ($680 application plus $1,020 exam). Fellowship-eligible applicants pay $1,450. Extended applications add $500, and reexamination costs $1,020.
The 2026 testing window is December 7-11, with scheduling for approved candidates open July 20 through November 23, 2026. AD is offered only in even-numbered years.
You enter annual Continuous Certification (C-cert) starting the year after certification, requiring an 80%-or-higher score on a 25-question open-reference quiz, completed by December 31 each year.
For a complete look at what the credential means, how it's structured, and how to prepare, explore AD Certification, What Is AD?, and What Is AD Certification? - or head to the practice test homepage to start applying these facts under timed conditions.