- How the ACNB Written Blueprint Is Built
- All 16 Domains and Their Weights at a Glance
- The Domains That Carry the Most Weight
- Foundations: Neuron Theory, Receptors, Peripheral Nerves, Spinal Cord
- Brainstem, Cranial Nerves, and Head and Face Pain
- Cerebellar/Vestibular, Basal Ganglia, and Reflexogenic System
- Autonomic, Limbic, Lobes, Environment, Neuroendocrine, and Pain
- The Work-Activity Axis: A Second Lens on the Same Content
- What the Performance Examination Adds
- Sequencing Your Domains Across a Study Plan
- Frequently Asked Questions
- The written blueprint has 16 content domains, drawn from the October 3, 2024 ACNB Job Analysis Report.
- Cerebellar/Vestibular is the single heaviest domain at 10%; Neuroendocrine System is the lightest at 4%.
- Brainstem and Autonomic Nervous System each carry 8%, making them the next-highest-value domains.
- The work-activity axis (diagnosis 42%, treatment 24%) crosses the domains and is not extra content.
How the ACNB Written Blueprint Is Built
The Diplomate of the American Chiropractic Neurology Board (DACNB) is awarded by the American Chiropractic Neurology Board (ACNB), and its written examination is organized around sixteen content domains. The weights discussed here come from the current public 2024-final blueprint in the October 3, 2024 ACNB Job Analysis Report, which is consistent with the Candidate Handbook revised in August 2024. If you have seen an older weighting circulating in study groups or forum posts, treat it with suspicion: the prior-2019 column and survey recommendations in the source material are not the numbers to study against.
Two things are worth stating up front. First, the DACNB is a chiropractic neurology credential; it does not establish equivalence to physician neurology board certification such as ABPN, and it should not be confused with any other credential that happens to share the same acronym. Second, the public summary does not reproduce every underlying knowledge, skill, and task statement, so a domain name tells you the territory but not every leaf-level objective. Use the domain list as a map, then build depth from the Candidate Handbook and your own coursework.
If you are still orienting yourself to the credential itself, start with What Is DACNB Certification? and the eligibility rundown in DACNB Requirements 2026: Eligibility, Prerequisites & How to Qualify. This article assumes you are already committed and want to know what the exam actually covers.
All 16 Domains and Their Weights at a Glance
The table below lists every domain exactly as weighted in the 2024-final blueprint. The weights sum to 100%. Note that the handbook uses a few equivalent labels (for example, "Cerebellum" for Cerebellar/Vestibular, "Reflexogenic Systems" for Reflexogenic System, and "Neuro-Endocrine System" for Neuroendocrine System), so do not be thrown if you see those variants in official documents.
| # | Domain | Weight |
|---|---|---|
| 1 | Neuron Theory | 5% |
| 2 | Receptor Systems | 5% |
| 3 | Peripheral Nerves | 7% |
| 4 | Spinal Cord | 6% |
| 5 | Brainstem | 8% |
| 6 | Cranial Nerves | 7% |
| 7 | Head and Face Pain | 6% |
| 8 | Cerebellar/Vestibular | 10% |
| 9 | Basal Ganglia | 6% |
| 10 | Reflexogenic System | 5% |
| 11 | Autonomic Nervous System | 8% |
| 12 | Limbic System | 5% |
| 13 | Lobes of the Brain | 6% |
| 14 | Brain and Its Environment | 5% |
| 15 | Neuroendocrine System | 4% |
| 16 | Pain | 7% |
The Domains That Carry the Most Weight
Cerebellar/Vestibular at 10% is the largest single slice of the written blueprint. Brainstem and Autonomic Nervous System follow at 8% each. Peripheral Nerves, Cranial Nerves, and Pain sit at 7% each. Together, those six domains account for 47% of the content, which is why a disciplined candidate front-loads them rather than distributing study time evenly across all sixteen.
That said, weighting is not the same as difficulty. A 4% domain such as Neuroendocrine System can still sink you if you ignore it, especially because neuroendocrine concepts interlock with the Autonomic Nervous System, Limbic System, and Brain and Its Environment domains. The practical lesson is to use the weights to prioritize hours, not to justify skipping the small domains. For a deeper look at how candidates experience the overall challenge, see How Hard Is the DACNB Exam? Complete Difficulty Guide 2026.
Why Cerebellar/Vestibular Deserves Your Largest Block of Time
At 10%, this domain rewards candidates who can move fluidly between anatomy, pathway tracing, and clinical localization.
- Cerebellar circuitry and the functional zones of the cerebellum
- Vestibular pathways, including how peripheral and central lesions differ in presentation
- Localizing a deficit from an exam finding rather than just naming a structure
- How cerebellar and vestibular findings interact with brainstem and cranial nerve territory
Foundations: Neuron Theory, Receptor Systems, Peripheral Nerves, and Spinal Cord
The first four domains (Neuron Theory 5%, Receptor Systems 5%, Peripheral Nerves 7%, Spinal Cord 6%) total 23% and form the bedrock for everything that follows. They are also where candidates coming from a chiropractic background often feel most comfortable, which is a double-edged sword: familiarity can breed under-preparation on the finer physiology.
Neuron Theory and Receptor Systems
Expect these domains to test the cellular and sensory machinery that underlies clinical reasoning. Think synaptic transmission, membrane behavior, neuronal plasticity, and how different receptor classes encode and transmit information. Questions in these areas tend to reward mechanism-level understanding: if you can explain why a receptor type responds as it does, you can usually reason your way through a clinical vignette built on it.
Peripheral Nerves and Spinal Cord
Peripheral Nerves at 7% asks you to connect nerve anatomy to clinical presentation, including plexus organization and the pattern of deficits produced by different lesions. Spinal Cord at 6% extends that into ascending and descending tracts, segmental organization, and the classic lesion syndromes. Both domains reward the same habit: given a set of findings, work out where the lesion must be.
High-Value Foundations Checklist
Make sure you can do each of these without notes before moving on.
- Trace a sensory modality from receptor to cortex, naming each synapse
- Trace a motor command from cortex to muscle, naming each decussation point
- Predict the deficit pattern for a given peripheral nerve or spinal cord lesion level
- Distinguish upper from lower motor neuron findings in a vignette
Brainstem, Cranial Nerves, and Head and Face Pain
Brainstem (8%), Cranial Nerves (7%), and Head and Face Pain (6%) total 21% and are tightly interwoven. Studying them as a cluster, rather than as three separate chapters, pays off because the clinical questions rarely respect the boundaries between them.
The Brainstem domain is about localization: crossed findings, nuclei and tracts at each level, and the syndromes that arise from vascular or structural insults. The Cranial Nerves domain demands precise knowledge of each nerve's nuclei, course, function, and examination technique. This ties directly to the physical-examination side of the credential, discussed below, where cranial nerve testing is the single largest component of the performance examination's physical-exam scope. Head and Face Pain then asks you to apply that anatomy to trigeminal pathways, headache and facial pain presentations, and the differential reasoning that separates one entity from another.
Cerebellar/Vestibular, Basal Ganglia, and Reflexogenic System
These three domains (10%, 6%, and 5% respectively, totaling 21%) form the motor-control and movement cluster. They are conceptually linked by the question of how movement is initiated, modulated, coordinated, and reflexively regulated.
Cerebellar/Vestibular
Beyond the weighting discussed earlier, think of this domain as a test of clinical pattern recognition. You need to know what a cerebellar lesion looks like on exam, how it differs from a vestibular lesion, and how to reason about whether a presentation is peripheral or central.
Basal Ganglia
Basal Ganglia at 6% covers the direct and indirect pathway circuitry, the neurotransmitter systems involved, and the movement disorders that result from dysfunction. Be ready to connect circuit-level logic to hypokinetic and hyperkinetic presentations, since vignette questions often describe a patient's movement phenotype and ask you to reason back to the circuit.
Reflexogenic System
At 5%, this domain covers the reflex arcs and the central modulation of reflex activity. In the handbook it may appear under the label "Reflexogenic Systems." Know the segmental basis of common reflexes, what hyperreflexia and hyporeflexia imply about lesion location, and how reflex testing fits into your overall examination logic.
Cross-Domain Connection to Master
Cerebellar, basal ganglia, and reflex findings often appear together in a single case. Practice building a unified exam interpretation rather than reasoning about each system in isolation.
- Compare tone, reflex, and coordination findings across lesion locations
- Identify which findings point to cerebellum versus basal ganglia versus corticospinal involvement
Autonomic, Limbic, Lobes, Environment, Neuroendocrine, and Pain
The remaining six domains (Autonomic Nervous System 8%, Limbic System 5%, Lobes of the Brain 6%, Brain and Its Environment 5%, Neuroendocrine System 4%, and Pain 7%) total 35%. They are the most integrative portion of the blueprint, and they are where the larger physiological picture comes together.
Autonomic Nervous System
At 8%, this is one of your higher-value domains. Know sympathetic and parasympathetic organization, central autonomic control, and how autonomic dysfunction presents clinically. This domain also connects naturally to the cardiovascular, respiratory, and abdominal components of the physical examination.
Limbic System and Lobes of the Brain
Limbic System at 5% and Lobes of the Brain at 6% together test your understanding of higher-order function: emotion, memory, behavior, and the characteristic syndromes associated with frontal, parietal, temporal, and occipital involvement. These pair well with the cognitive testing component of the performance examination.
Brain and Its Environment
This domain, at 5%, addresses the milieu in which the brain operates. Think of the protective and supportive systems around neural tissue and the conditions that influence brain health. Because the label is broad, supplement your reading with the Candidate Handbook's descriptions to understand exactly what the ACNB includes here.
Neuroendocrine System and Pain
Neuroendocrine System is the lightest domain at 4%, but it is conceptually rich: hypothalamic-pituitary relationships and neural control of endocrine function. Pain at 7% sits higher and spans nociceptive pathways, modulation, and clinical pain syndromes. It overlaps meaningfully with Head and Face Pain, so reviewing the two together is efficient.
Key Takeaway
The last six domains reward integration. If you study autonomic, limbic, neuroendocrine, and pain content as one connected physiological story rather than six isolated lists, you will retain more and answer vignette questions faster.
The Work-Activity Axis: A Second Lens on the Same Content
One of the most commonly misunderstood features of the blueprint is the work-activity axis. It is a separate distribution that crosses the sixteen domains. It is not six additional content domains, and you must not add its percentages to the domain weights to arrive at some 200% total. The written-examination work activities, totaling 100%, are:
| Work Activity (Written Exam) | Weight |
|---|---|
| Take a Patient History | 5% |
| Perform a Physical Exam | 20% |
| Conduct or Order Special Studies | 6% |
| Identify Diagnosis(es), Differential Diagnosis(es), Disease Processes, Metabolic Rate, Pathways | 42% |
| Treatment and Rehabilitation | 24% |
| Referral | 3% |
The practical implication is striking. Diagnostic reasoning at 42% and treatment and rehabilitation at 24% together make up two-thirds of the work-activity weighting. So even within a purely anatomical domain such as Brainstem, expect to be asked not only "what structure is this" but "what is the likely diagnosis and what would you do about it." Study each domain with those three questions in mind: how does this present, how do I differentiate it, and how do I manage it.
What the Performance Examination Adds
The DACNB pathway includes a performance examination in addition to the written examination, and the two test different things. Multiple-choice practice supports knowledge preparation, but it does not replace demonstrating clinical skills in the performance examination. Plan for both.
The performance examination's physical-examination scope has its own separate distribution, totaling 100%:
| Physical-Examination Component | Weight |
|---|---|
| Obtain the Patient's Vital Signs | 3% |
| Perform Cranial Nerve Examinations | 18% |
| Perform Sensory Examinations | 10% |
| Perform Testing of the Motor Systems | 14% |
| Perform Reflex Testing | 6% |
| Evaluate the Cerebellum and Vestibular Systems | 17% |
| Evaluate Cardiovascular, Respiratory, and Abdomen | 9% |
| Perform Tests Related to the Basal Ganglia | 10% |
| Perform Tests Related to the Limbic System | 5% |
| Perform Cognitive Tests | 6% |
| Additional Tests | 2% |
Cranial nerve examination (18%) and cerebellum and vestibular evaluation (17%) dominate. That mirrors the written blueprint's emphasis on Cerebellar/Vestibular and Cranial Nerves, which is reassuring: the same knowledge base supports both, but on the performance side you must be able to execute the maneuvers fluently and interpret findings in real time.
The performance examination also includes case-study work activities with their own distribution (again totaling 100%): diagnosis and differential 45%, treatment and rehabilitation 30%, physical exam 10%, special studies 6%, review a patient history 5%, and referral 4%. Notice that treatment and rehabilitation weigh even more heavily here (30%) than on the written axis (24%), so do not treat management as an afterthought.
Sequencing Your Domains Across a Study Plan
You asked for a plan tied to the blueprint rather than generic advice, so here is a domain-ordered sequence that respects how the material builds. Adjust the timeline to your own calendar; for broader pacing and resource choices, see the DACNB Study Guide 2026: How to Pass on Your First Attempt.
Foundations (23% of content)
- Neuron Theory and Receptor Systems for mechanism-level grounding
- Peripheral Nerves and Spinal Cord for lesion localization habits
Brainstem Cluster (21%)
- Brainstem, Cranial Nerves, and Head and Face Pain studied together
- Begin hands-on cranial nerve exam practice
Motor Control Cluster (21%)
- Cerebellar/Vestibular first, given its 10% weight
- Basal Ganglia and Reflexogenic System to complete the movement picture
Integrative Domains (35%)
- Autonomic, Limbic, Lobes, Brain and Its Environment, Neuroendocrine, and Pain
- Cross-link pain with head and face pain; link neuroendocrine with autonomic
Case Integration and Review
- Full-case practice emphasizing diagnosis, differential, and management
- Targeted review of your weakest domains using timed questions
Once you have worked through the content, a compact review tool helps with consolidation; the DACNB Cheat Sheet 2026: One-Page Review of Must-Know Facts is a useful companion in the final stretch. To pressure-test your retention under exam-style conditions, try the DACNB practice tests and use your results to decide which domain to revisit.
Logistics You Should Confirm Before You Commit Study Time
Several practical details are not established in the sources behind this guide, and you should verify them directly with the ACNB rather than rely on secondhand claims. The exam fee, the numeric passing score, and the pass rate were not verified here, so this article does not state them. For the latest on these items, consult the official ACNB resources and the Candidate Handbook, and see our pages on DACNB Certification Cost 2026, DACNB Passing Score 2026, and DACNB Exam Dates 2026 for ongoing coverage. Building your plan around confirmed dates and fees avoids nasty surprises.
Frequently Asked Questions
There are sixteen content domains in the current public 2024-final blueprint from the October 3, 2024 ACNB Job Analysis Report, consistent with the Candidate Handbook revised August 2024. The domain weights total 100%.
Cerebellar/Vestibular carries the highest weight at 10%. Brainstem and Autonomic Nervous System follow at 8% each, while Neuroendocrine System is the lightest at 4%.
No. The work-activity axis (for example, diagnosis at 42% and treatment and rehabilitation at 24% on the written exam) is a separate distribution that crosses the sixteen domains. It must not be added to the domain weights to produce a 200% blueprint.
It supports knowledge preparation for the written examination, but it does not replace demonstrating clinical skills in the performance examination. You should also practice physical-examination technique hands-on, especially cranial nerve and cerebellar/vestibular testing.
No. The DACNB is a chiropractic neurology credential awarded by the ACNB, and it does not establish equivalence to physician neurology board certification such as ABPN. To understand what the credential does represent, read What Is DACNB?.
Mastering the sixteen domains is a matter of prioritizing by weight, integrating across related systems, and pairing knowledge with practiced clinical skill. Use this blueprint to direct your hours, confirm logistics with the ACNB, and revisit your weakest domains until localization and differential reasoning feel automatic.