CPHN Exam Eligibility and Cost

Who can sit for the Certified in Public Health Nursing exam, the three official eligibility pathways, and exactly what it costs, from the NBPHE's published candidate handbook.

Last updated 12 October 2026, against the NBPHE's October 2026 CPHN Candidate Handbook and fees page.

The CPHN credential is new. The National Board of Public Health Examiners (NBPHE) says the exam will launch in late 2026, with applications opening this fall. The eligibility rules and fees are now published in full, so this page sets them out plainly.

Who the CPHN is for

The CPHN is designed for registered nurses who practice in public health and community settings rather than at the individual bedside. That includes nurses working in health departments, community and population health programs, school health, occupational health, and similar population-focused roles.

CPHN eligibility requirements

Every applicant must hold an active and current Registered Nurse license. On top of that, you qualify through one of three pathways, depending on your education:

• Nursing diploma or Associate Degree in Nursing: completed from an accredited nursing program, plus at least 2 years of public health nursing practice experience.
• BSN or higher: completed from an accredited nursing program, plus at least 1 year of public health nursing practice experience.
• Graduate degree or doctorate in public health or public health nursing: no work experience required. This includes a master's or doctorate in community health or community health nursing, population health or population health nursing, or public health.

The NBPHE explains the experience requirements this way: its advisory committee judged that one to two years of practice is what it takes to reach proficiency across the seven exam domains, and it built several pathways so nurses at different education levels and career stages could apply.

Good news for ADN and diploma nurses

This is the part that overturns what most nurses assume. Specialty certification in public health nursing has historically emphasized bachelor's or graduate level preparation, which left experienced associate degree and diploma prepared nurses without a route.

The CPHN was built differently. Following advocacy from the Organization for Associate Degree Nursing, which is represented on the NBPHE's CPHN governing council, the NBPHE included associate degree and diploma nurses. If you are an ADN or diploma prepared nurse with two years of public health nursing behind you, you are eligible.

How to apply

• Create an account on the NBPHE's CertCentral portal and complete the online CPHN application.
• Upload a copy of your transcript (a student or unofficial copy is accepted, as a Word document or PDF). The NBPHE uses your transcript and resume to verify your public health nursing experience.
• Accept the application attestation and the NBPHE Code of Ethics, and request testing accommodations if you need them.
• Pay the exam fee at the time of application.

The NBPHE asks applicants to allow at least two weeks for review. Once approved, you receive scheduling instructions by email. Your eligibility never expires: there is no deadline to take the exam once you are approved.

When the exam launches

The NBPHE says the CPHN exam launches in late 2026, with applications opening this fall and scheduling opening later in the fall. After launch, the exam is offered year round at testing centers and by live online proctor. The first group of candidates will wait 6 to 8 weeks for scores while the passing standard is set; later candidates get instant scores. Our launch date tracker follows each milestone.

How much does the CPHN exam cost?

• Standard exam fee: $385, paid when you apply.
• "Take Two" bundle: $435, which includes a free retake for any reason. It cannot be combined with discounts.
• Partner discounts: $250 to $315 for employees, members, students, or alumni of NBPHE partner organizations. You claim it by listing your affiliation on the application.
• Retake: $150.
• Rescheduling at a testing center: free more than 10 days ahead, $15 between 2 and 10 days ahead. Inside 48 hours, you pay the $150 retake fee.
• Recertification: $95 every three years, with 30 recertification credits.

Fees are not refundable once your application is approved. If you apply and are found not eligible, you can request a full refund. Before paying the standard fee, check whether your employer, school, or a professional association you belong to is on the NBPHE partner list.

How to prepare

Eligibility tells you whether you can sit the exam. The content outline tells you what is on it. Start with the domains that carry the most weight, Assessment and Analysis at 20 percent and Systems and Foundational Knowledge and Communication and Cultural Competence at 19 percent each, and build from there. Our domain guide breaks down all seven.

CPHNPrep is an independent study resource and is not affiliated with, endorsed by, or sponsored by the National Board of Public Health Examiners (NBPHE). Eligibility pathways and fees reflect the NBPHE’s October 2026 CPHN Candidate Handbook and fees page as of the last updated date, and may change. Always confirm current details with the NBPHE.