- AD certification is administered by UCNS, not by any other organization sharing the "AD" acronym.
- The initial exam is 200 multiple-choice questions in a four-hour session, split into two halves by one 15-minute break.
- All four content domains - Basic Science, Laboratory Evaluation, Clinical Autonomic Disorders, and Clinical Management - carry equal 25% weight.
- Standard initial fees total $1,700; UCNS-accredited fellows qualify for a $250 discount, bringing the total to $1,450.
What Is AD Certification?
AD - the Autonomic Disorders Certification - is a subspecialty credential offered through the United Council for Neurologic Subspecialties (UCNS). It's designed for physicians who diagnose and manage disorders of the autonomic nervous system, from orthostatic intolerance syndromes to autonomic failure in neurodegenerative disease. If you've landed here searching for background on the credential itself, our companion pieces on What Is AD? and AD Meaning cover the terminology in more depth, while What Does AD Stand For? addresses the acronym confusion directly.
Test delivery is supported by Meazure Learning, which offers both in-person testing centers and live virtual proctoring via ProctorU with Guardian. That flexibility matters for practicing physicians juggling clinical schedules around a fixed testing window.
The Four AD Exam Domains
UCNS's content outline, last revised June 5, 2020, splits the 200-question exam evenly across four domains. Equal weighting means you can't afford to under-prepare any single area - a candidate strong in clinical management but weak in basic science faces the same risk as the reverse. For a deeper domain-by-domain breakdown, see AD Exam Domains 2026: Complete Guide to All 4 Content Areas.
Domain 1: Basic Science (25%)
Covers the anatomy, physiology, and pharmacology underlying autonomic function - sympathetic and parasympathetic pathways, neurotransmitter systems, and the physiologic basis of reflexes tested in the lab.
- Neuroanatomy of central and peripheral autonomic pathways
- Receptor pharmacology relevant to autonomic drugs
Domain 2: Laboratory Evaluation of Autonomic Function (25%)
Focuses on interpreting autonomic testing - tilt-table studies, quantitative sudomotor axon reflex testing (QSART), heart rate variability, and Valsalva maneuver responses.
- Distinguishing normal from pathologic reflex patterns
- Correlating lab findings with specific autonomic syndromes
Domain 3: Clinical Autonomic Disorders (25%)
Tests recognition and differential diagnosis of primary and secondary autonomic disorders, including neurodegenerative autonomic failure, autoimmune autonomic neuropathies, and orthostatic intolerance syndromes.
- Differentiating multiple system atrophy from Parkinson disease with autonomic features
- Recognizing secondary autonomic dysfunction from systemic disease
Domain 4: Clinical Management (25%)
Covers pharmacologic and non-pharmacologic treatment strategies, including volume management, medication selection for orthostatic hypotension, and long-term care planning.
- Selecting first-line vs. adjunct pharmacotherapy
- Managing treatment-resistant or complex cases
Key Takeaway
Because all four domains weigh equally, build a study plan that dedicates roughly the same number of hours to each - don't let familiar clinical territory crowd out laboratory interpretation or basic science review. Our AD Study Guide 2026: How to Pass on Your First Attempt walks through domain-by-domain allocation in detail.
Eligibility Pathways
UCNS updated eligibility criteria on December 11, 2025. Candidates must hold qualifying primary board certification and medical licensure, plus complete one of several approved pathways:
- Accredited fellowship route: At least 12 months of AD-focused fellowship training, with application submitted within 48 months of completion.
- Practice track: 36 months of practice with at least 25% AD-focused clinical activity within the applicable 60-month window, two physician verification letters, and an additional qualifying component - further training, 50 hours of AD-specific CME, or academic teaching.
- Academic-appointment pathway and internationally trained faculty pathway for candidates who don't fit the standard fellowship or practice-track molds.
Full documentation requirements and verification steps are detailed in AD Requirements 2026: Eligibility, Prerequisites & How to Qualify. If you're evaluating fellowship options before applying, AD Training outlines what accredited programs typically look like.
Fees and Registration Mechanics
The standard initial fee is $1,700, broken into a $680 nonrefundable application fee and a $1,020 examination fee. Candidates coming through an eligible UCNS-accredited fellowship receive a $250 discount, reducing their total to $1,450. Extended applications (for those applying after the standard deadline) add $500, and reexamination costs $1,020.
| Fee Component | Amount |
|---|---|
| Application fee (nonrefundable) | $680 |
| Examination fee | $1,020 |
| Standard total | $1,700 |
| Fellowship discount | -$250 (total: $1,450) |
| Extended application surcharge | +$500 |
| Reexamination | $1,020 |
For a complete cost breakdown including the continuous certification fees, see AD Certification Cost 2026: Complete Pricing Breakdown.
Exam Format and Exam Day
The initial AD exam consists of 200 multiple-choice questions administered within a four-hour limit. It is closed book, with one break of up to 15 minutes between the two halves - and once you move past a question set, you cannot return to earlier questions. Candidates testing virtually have access to an online calculator during the exam.
Passing is determined through criterion-referenced standard setting rather than a fixed curve, meaning your result depends on demonstrated mastery against a defined standard, not on how other candidates perform. For specifics on what that standard means in practice, read AD Passing Score 2026: Exactly What You Need to Pass.
2026 Exam Window and Deadlines
The 2026 AD exam window runs December 7-11. The standard application deadline was June 15, with an extended deadline (subject to the $500 surcharge) of July 1. Approved candidates can schedule their appointment anytime between July 20 and November 23, 2026. Because this exam is offered only in even-numbered years, missing this cycle means waiting until the next scheduled administration.
For the full scheduling calendar and what happens if you miss a deadline, check AD Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Maintaining Certification: C-Cert
Certification doesn't end at the pass notification. Annual continuous certification (C-Cert) begins the year after you first certify. Each year requires completing designated readings and passing a 25-question, 100-minute open-reference quiz with a score of at least 80%, allowing up to three attempts. Completion is due December 31 each year.
The annual C-Cert fee is $175 per subspecialty, discounted to $150 if paid by June 1. Budgeting for this recurring cost is worth factoring into your long-term certification plan - see Is the AD Certification Worth It? Complete ROI Analysis 2026 for a broader cost-versus-benefit view.
Mapping Your Prep to the Domains
Rather than a generic study calendar, anchor your prep weeks to the AD domain weights. Since each domain is worth 25%, a balanced multi-week rotation keeps you from over-indexing on the clinical material that feels most familiar from daily practice.
Basic Science
- Review autonomic neuroanatomy and neurotransmitter pharmacology
- Build quick-reference notes on receptor subtypes and drug mechanisms
Laboratory Evaluation
- Practice interpreting tilt-table, QSART, and heart rate variability tracings
- Drill pattern recognition between normal and pathologic autonomic reflexes
Clinical Autonomic Disorders
- Work through differential diagnosis scenarios across primary and secondary syndromes
- Focus on distinguishing overlapping neurodegenerative presentations
Clinical Management
- Review pharmacologic and non-pharmacologic treatment algorithms
- Take full-length timed practice sets mixing all four domains
Once you've cycled through all four domains, spend remaining weeks on mixed-domain practice questions under timed conditions to simulate the four-hour, single-break format. Our practice test platform is built specifically around this rotation, letting you drill weak domains individually before combining them into full simulated exams.
Who Hires AD-Certified Physicians
AD certification signals subspecialty expertise to academic medical centers, autonomic and dysautonomia clinics, and multidisciplinary neurology practices that manage complex referral cases. Neurologists pursuing autonomic-focused careers often use the credential to differentiate themselves within movement disorder, neuromuscular, or general neurology departments where autonomic testing services are offered. For a broader look at career paths and compensation considerations, see AD Jobs and AD Salary Guide 2026: Complete Earnings Analysis.
Key Takeaway
Because AD is a UCNS subspecialty rather than a broad primary board, it's most valuable to physicians already established in neurology who want to formalize and market autonomic-specific expertise.
Frequently Asked Questions
The United Council for Neurologic Subspecialties (UCNS) administers AD certification, with Meazure Learning supporting test-center and live virtual proctoring delivery.
The initial exam has 200 multiple-choice questions with a four-hour time limit, split into two halves by one break of up to 15 minutes.
The standard initial fee is $1,700 ($680 application plus $1,020 exam). Eligible fellowship applicants receive a $250 discount, bringing the total to $1,450. Extended applications add $500, and reexamination is $1,020.
The 2026 exam window runs December 7-11, with scheduling for approved candidates available July 20-November 23, 2026. This exam is offered in even-numbered years only.
You enter annual C-Cert, requiring designated readings and a 25-question, 100-minute open-reference quiz scored at least 80%, due by December 31 each year, with an annual fee of $175 (or $150 if paid by June 1).
For more foundational context on the credential and how it's classified, browse AD Certification, What Is AD Certification?, What Is A AD?, or What Does AD Mean?. And when you're ready to test your domain knowledge under realistic conditions, head to our practice exam platform to get started.