Can you still take a CNS certification exam?

Yes. AACN offers ACCNS-AG, ACCNS-P, and ACCNS-N by population, and ANCC still offers the Adult-Gerontology CNS (AGCNS-BC) exam. What changed is that several older ANCC CNS certifications (Adult Health, Gerontological, Public Health, Home Health, and the CNS Core) became renewal-only and can no longer be taken as a new exam.

AACN ACCNS-AG or ANCC AGCNS-BC: which should I take?

Both certify an adult-gerontology CNS and share the same format (175 items, 3.5 hours). Choose based on what your program aligned to, the fee, and most importantly what your state board of nursing recognizes for CNS practice and prescriptive authority. Confirm acceptance with your board before registering.

How much does the CNS exam cost?

The AACN ACCNS exams are $270 for members and $380 for non-members. The ANCC AGCNS-BC exam is priced separately on the ANCC site. Confirm current pricing with the certifying body, as fees change.

What are the eligibility requirements for a CNS exam?

A graduate CNS program in your population from a nationally accredited school of nursing, a current unencumbered RN or APRN license, and the program's supervised clinical hours (the AACN ACCNS and ANCC AGCNS-BC require a minimum of 500 faculty-supervised clinical hours).

How do CNSs stay certified?

Both AACN and ANCC CNS certifications renew every five years through continuing education and professional-development categories (or, for AACN, by exam). The legacy ANCC CNS certs that are now renewal-only also renew on a five-year cycle. Confirm the current categories with your certifying body.

How to Pass the CNS Boards

Clinical Nurse Specialist · AACN & ANCC · Last reviewed June 20, 2026

Built by Keegan, a travel RN · verified against official board sources

The CNS credential landscape changed, and which exam you take depends on your population and certifying body. AACN offers the ACCNS exams and ANCC still offers the Adult-Gerontology CNS exam, while several older ANCC CNS certs are now renewal-only. Here is what is actually takeable, the format, and how to prepare.

Exam quick facts

Active exams	AACN ACCNS-AG, ACCNS-P, ACCNS-N (by population); ANCC AGCNS-BC (adult-gero)
Format	175 items (150 scored, 25 unscored pretest)
Time	3.5 hours
Passing standard	Criterion-referenced (AACN uses a modified-Angoff cut score); score not compared to other candidates
Recent pass rate	Not published by AACN or ANCC
Initial exam fee	AACN ACCNS: $270 member / $380 non-member; ANCC AGCNS-BC priced separately
Recertification	Every 5 years (both AACN and ANCC)

Exam specifications and fees change, so always confirm current details with AACN & ANCC before registering.

About the credential

A Clinical Nurse Specialist is one of the four APRN roles, an expert in a population who drives clinical practice, quality, and systems improvement. To certify, you take a population-specific exam after completing a graduate CNS program. The active exam routes are AACN's ACCNS-AG (adult-gerontology), ACCNS-P (pediatric), and ACCNS-N (neonatal), and ANCC's Adult-Gerontology CNS (AGCNS-BC). Several older ANCC CNS certifications are now available for renewal only and can no longer be taken as an exam. This guide covers which exam fits which population, the format, eligibility, fees, a study plan, and recertification.

Who pursues it

Students finishing an accredited graduate Clinical Nurse Specialist program
New graduates choosing between the AACN ACCNS and ANCC AGCNS-BC routes
RNs researching the CNS role who want to understand the certification landscape before enrolling

Does the CNS actually raise your pay? (The honest answer)

CNS certification is the credential to practice in the CNS role, not an optional RN pay differential. The income change comes from moving into a CNS position after a graduate program, not from the certificate itself, and CNS compensation varies widely because the role spans direct care, staff development, and systems leadership. State recognition of the CNS role and any prescriptive authority also affects scope and pay. Earning the credential without stepping into a CNS role does not raise an RN's pay.

Eligibility

A graduate-level CNS education program in your population focus from a nationally accredited school of nursing (CCNE, ACEN, or NLN CNEA)
A current, unencumbered U.S. RN or APRN license
Supervised graduate clinical hours in the population (AACN ACCNS and ANCC AGCNS-BC require a minimum of 500 faculty-supervised clinical hours)

A study plan that works

1Weeks 1–2: Pick your exam, then map its blueprint. Choose the population-correct route (AACN ACCNS-AG/P/N or ANCC AGCNS-BC) and let that body's test content outline define your study map. Take a full-length practice set early so your schedule targets your weak areas.
2Weeks 1–6: Run a question bank daily. CNS exams test application across the three spheres of CNS practice (patient and family, nurses and nursing practice, and organizations and systems), so reps surface gaps reading hides. Review every item and log the reasoning.
3Weeks 2–4: Front-load the clinical-expert content for your population. Advanced pathophysiology, pharmacology, and health assessment for your population, plus the high-frequency conditions and their evidence-based management. This is the largest content block.
4Weeks 3–5: Drill the nursing-practice sphere. Evidence-based practice, coaching and mentoring nursing staff, translating research into protocols, and consultation. The CNS role is distinct from the NP role here, and the exam tests it.
5Weeks 4–6: Cover the systems sphere. Quality improvement methods, patient-safety and outcomes measurement, change management, program development, and cost and value, the systems-leadership work that defines the CNS.
6Weeks 4–6: Add the professional-role content. Scope of practice for the CNS, ethics, documentation, and the regulatory differences in CNS recognition and prescriptive authority across states.
7Weeks 7–8: Switch to timed, mixed practice. Build stamina for 175 items in 3.5 hours and rehearse pacing. The goal is endurance and consistency, not new content.
8Final week: Consolidate, do not cram. Work your error log and high-yield sheets, taper new material, protect sleep, and confirm your testing logistics.
9Throughout: Keep one error log. Every missed question goes in it with the reason you missed it; the final-week review of that log is the highest-return study activity.

Best CNS review courses & question banks

AACN ACCNS Exam Handbook
Free (AACN)
The official handbook with the blueprint, eligibility, and the modified-Angoff scoring explanation. Free, and the best planning document for the AACN route. (No affiliate relationship.)
ANCC AGCNS-BC test content outline
Free (ANCC)
The official blueprint for the ANCC adult-gero CNS exam. Free. (No affiliate relationship.)
CNS review courses (AACN / NACNS-aligned)
Review course
Independent CNS board-review courses used as a structured supplement. (Listed for completeness; no affiliate relationship.)

Some links are affiliate links. If you buy through them, RenewRN may earn a commission at no extra cost to you. Courses listed without a link are included for completeness; we have no affiliate relationship with them.

Recommended CNS books

Clinical Nurse Specialist Role and Practice (NACNS)
Core text on the three spheres of CNS practice, central to the role-specific exam content.
View on Amazon
Adult-Gerontology CNS certification review
Review-and-question resource aligned to the adult-gero CNS exams.
View on Amazon

As an Amazon Associate, RenewRN earns from qualifying purchases, at no extra cost to you.

Which exam to take

Match the exam to your population and confirm what your state board recognizes. AACN offers ACCNS-AG (adult-gerontology), ACCNS-P (pediatric), and ACCNS-N (neonatal). ANCC still offers the Adult-Gerontology CNS (AGCNS-BC) exam. Several older ANCC CNS certifications, including Adult Health (ACNS-BC), Gerontological (GCNS-BC), Public/Community Health (PHCNS-BC), Home Health (HHCNS-BC), and the CNS Core (CNS-BC), are now available for renewal only and cannot be taken as a new exam. AACN's older CCNS is likewise renewal-only. If you are newly certifying in adult-gero, your active choices are AACN ACCNS-AG or ANCC AGCNS-BC.

Keeping it current

Both AACN and ANCC CNS certifications are valid for five years. AACN renews by continuing education and practice or by exam; ANCC renews through its professional-development categories. The legacy ANCC CNS certs that moved to renewal-only also renew on a five-year cycle for those who already hold them. Confirm the current renewal categories with your certifying body.

Certification renewal is one of up to four clocks an APRN keeps current, alongside the RN license, the state APRN license, and DEA registration. See the NP & APRN renewal hub for how they fit together by state.

Frequently asked questions

Can you still take a CNS certification exam?: Yes. AACN offers ACCNS-AG, ACCNS-P, and ACCNS-N by population, and ANCC still offers the Adult-Gerontology CNS (AGCNS-BC) exam. What changed is that several older ANCC CNS certifications (Adult Health, Gerontological, Public Health, Home Health, and the CNS Core) became renewal-only and can no longer be taken as a new exam.
AACN ACCNS-AG or ANCC AGCNS-BC: which should I take?: Both certify an adult-gerontology CNS and share the same format (175 items, 3.5 hours). Choose based on what your program aligned to, the fee, and most importantly what your state board of nursing recognizes for CNS practice and prescriptive authority. Confirm acceptance with your board before registering.
How much does the CNS exam cost?: The AACN ACCNS exams are $270 for members and $380 for non-members. The ANCC AGCNS-BC exam is priced separately on the ANCC site. Confirm current pricing with the certifying body, as fees change.
What are the eligibility requirements for a CNS exam?: A graduate CNS program in your population from a nationally accredited school of nursing, a current unencumbered RN or APRN license, and the program's supervised clinical hours (the AACN ACCNS and ANCC AGCNS-BC require a minimum of 500 faculty-supervised clinical hours).
How do CNSs stay certified?: Both AACN and ANCC CNS certifications renew every five years through continuing education and professional-development categories (or, for AACN, by exam). The legacy ANCC CNS certs that are now renewal-only also renew on a five-year cycle. Confirm the current categories with your certifying body.

New to this path? Read the step-by-step career roadmap.

How to become a clinical nurse specialist

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