1.1 Current Exam Facts

Key Takeaways

  • NBCE Part II is a computer-based clinical sciences exam with 255 multiple-choice questions across six weighted domains.
  • Session 1 covers General Diagnosis (19%), Neuromusculoskeletal Diagnosis (20%), and Diagnostic Imaging (17%)—56% of the blueprint.
  • Session 2 covers Principles of Chiropractic (14%), Chiropractic Practice (17%), and Associated Clinical Sciences (13%)—44% of the blueprint.
  • Third-year chiropractic students need registrar approval through MyNBCE before scheduling; graduates and retesters follow separate eligibility rules.
  • Part II is administered at Prometric centers and selected chiropractic college CBT sites, not as remote proctored testing.
Last updated: July 2026

What NBCE Part II Actually Tests

The National Board of Chiropractic Examiners (NBCE) Part II examination evaluates whether a candidate can apply clinical science knowledge to chiropractic practice—not whether you can recall isolated facts from a single course. Part II sits in the licensure sequence after foundational basic sciences (Part I) and before the more imaging-intensive and practical competency exams (Parts III and IV). For most candidates, Part II is the first board exam that feels like clinical decision-making under time pressure: history patterns, examination findings, imaging recognition, management principles, practice standards, and associated biomedical sciences all appear as integrated vignettes.

Unlike Part I, which emphasizes basic science depth, Part II asks: Given this presentation, what is the most likely diagnosis, the appropriate next study, the contraindication, or the documentation standard? That framing matters because your study plan should prioritize application drills over passive re-reading of notes.

Exam Structure at a Glance

FeatureOfficial Specification
DeliveryComputer-based testing (CBT)
Item typeMultiple-choice questions (MCQ)
Total items255 questions
Domains6 content areas with published weights
Sessions2 sessions with optional break between
Testing time3 hours 26 minutes
Appointment window4 hours (includes check-in and break)
Passing standardScaled score of 375 or higher
Exam fee (full)$710
Retake rule (2026)Individual-domain retakes ended January 1, 2026 — a failed Part II now requires a full-Part retake at $710

The 255-question count is fixed in the current Part II test plan. Treat every item as potentially scored unless NBCE publishes otherwise in your candidate bulletin; do not assume a large pool of unscored pilot questions the way some other high-stakes exams disclose. Your pacing target is therefore roughly 48 seconds per question across the full testing block—a pace that only feels comfortable after repeated timed sets.

The Six Domains and Why Session Order Matters

NBCE publishes domain weights that define how exam content is distributed. The six domains are grouped into two sessions:

Session 1 — Diagnostic Core (56% of blueprint)

  1. General Diagnosis (19%) — History, examination, laboratory and special studies, and differential diagnosis for conditions outside pure neuromusculoskeletal presentations. Expect cardiopulmonary, abdominal, dermatologic, and systemic red-flag scenarios.
  2. Neuromusculoskeletal Diagnosis (20%) — The single largest domain. Regional spine and extremity diagnosis, orthopedic and neurologic testing, pain patterns, and clinical impressions tied to chiropractic entry points.
  3. Diagnostic Imaging (17%) — Modality selection, radiographic interpretation fundamentals, and imaging findings that change management or contraindicate care.

Session 2 — Practice and Clinical Sciences (44% of blueprint)

  1. Principles of Chiropractic (14%) — Biomechanical reasoning, chiropractic principles, and frameworks that guide clinical judgment within scope.
  2. Chiropractic Practice (17%) — Documentation, ethics, informed consent, case management, referral, and operational standards of practice.
  3. Associated Clinical Sciences (13%) — Pharmacology, pathology, emergency care, and cross-cutting biomedical topics that inform safe decision-making.

Trap to avoid: memorizing domain titles without understanding session fatigue. Session 1 is diagnosis-heavy; if you exhaust mental energy on early vignettes, Session 2 ethics and pharmacology items still carry full weight toward your scaled score.

Eligibility: Third-Year Students, Graduates, and Retesters

Eligibility is not universal—status on your chiropractic college transcript and registrar certification drives what NBCE will accept.

Currently enrolled candidates (typical path)

Most students sit for Part II during third-year enrollment in an NBCE-eligible chiropractic program. The usual workflow:

  • Complete required coursework per your college's board-exam policy.
  • Apply through MyNBCE during an open registration window.
  • Obtain registrar approval confirming enrollment status and eligibility.
  • Select a test site (Prometric or approved college CBT location) and schedule within published deadlines.

Graduates and retesters

If you have already graduated—or you are retesting after a prior attempt—NBCE requires additional documentation beyond the standard enrolled-student pathway. Rules differ for:

  • Graduates testing for the first time after program completion.
  • Retesters repeating the full Part II exam.
  • Candidates with prior NBCE holds, irregular enrollment, or transfer credit complications.

Practical rule: never schedule until MyNBCE shows authorization to test. Prometric will not resolve eligibility disputes at the desk.

Where the Exam Is Delivered

Part II is offered at:

  • Prometric testing centers nationwide (and internationally where applicable).
  • Selected chiropractic college CBT sites during designated administration windows.

There is no at-home remote proctoring option for Part II. Plan travel, parking, and arrival time as part of your exam budget—especially if your college site has limited seat capacity during peak graduation seasons.

How Part II Fits the Licensure Sequence

NBCE ExamPrimary FocusRelationship to Part II
Part IBasic sciencesFoundational knowledge assumed in Part II vignettes
Part IIClinical sciences (6 domains)Current exam
Part IIIDiagnostic imaging / clinical decision depthBuilds on imaging and diagnosis skills
Part IVPractical competency stationsPerformance-based skills after written sequence

State boards set which NBCE exams they require and how long scores remain acceptable. A passing Part II score does not expire at NBCE, but your state may impose score-age limits—verify with the board where you intend to practice.

Official Sources You Should Bookmark

Anchor your prep—and your test-day expectations—to primary NBCE documents:

When NBCE updates bulletins, domain weights, fees, or scheduling rules can change even if the 255-question format remains stable. Re-read the overview page the week you apply.

High-Yield Mindset for This Chapter

Part II rewards candidates who can translate classroom knowledge into board-style decisions. As you move through this study guide, map every topic back to one of the six domains and ask which session it will likely appear in. The candidates who struggle are often those who studied "everything equally" instead of respecting the 19% + 20% + 17% diagnostic block that dominates Session 1.

Test Your Knowledge

Which three domains are administered in Session 1 of NBCE Part II?

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B
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D
Test Your Knowledge

How many multiple-choice questions appear on the current NBCE Part II exam?

A
B
C
D
Test Your Knowledge

A third-year chiropractic student wants to register for Part II. What must occur before they schedule at Prometric?

A
B
C
D
Test Your Knowledge

What combined percentage of the Part II blueprint do General Diagnosis and Neuromusculoskeletal Diagnosis represent?

A
B
C
D