Getting a nursing certification involves meeting clinical experience requirements, applying through a credentialing body, and passing a specialty exam. The process typically takes several months from start to finish, depending on whether you already have the required practice hours. Most certifications require an active RN license, at least two years of full-time nursing experience, and a minimum number of hours worked in your chosen specialty.
General Eligibility Requirements
While each certification has its own criteria, the core requirements overlap significantly. The American Nurses Credentialing Center (ANCC), which administers many of the most recognized certifications, requires two years of full-time experience as a registered nurse and a minimum of 2,000 hours of clinical practice in your specialty area within the last three years. You also need a current, unencumbered RN license.
Some certifications have additional educational requirements. Nurse practitioner certifications, for example, require a graduate degree from an accredited program. Specialty certifications in areas like critical care or emergency nursing focus more heavily on direct clinical hours than on advanced degrees. Before you start preparing for any exam, pull up the eligibility criteria from the specific credentialing organization and verify you meet every requirement. Applying before you qualify wastes both time and money.
Choosing a Specialty Certification
The certification you pursue should align with where you already work or where you want your career to go. Here are some of the most common options and what they require:
- CCRN (Critical Care Registered Nurse): Administered by the American Association of Critical-Care Nurses (AACN). You need 1,750 hours of direct care with acutely or critically ill patients over the past two years, with at least 875 of those hours in the most recent year. A five-year track is also available, requiring 2,000 total hours with 144 in the most recent year.
- CEN (Certified Emergency Nurse): Administered by the Board of Certification for Emergency Nursing (BCEN). This is a competitive exam with roughly 41,600 active certificants nationwide. Recent statistics show about 4,200 nurses passed the CEN out of approximately 8,900 who took it, putting the pass rate around 47%.
- FNP-C or AGPCNP (Nurse Practitioner certifications): Offered by both ANCC and the American Academy of Nurse Practitioners Certification Board (AANPCB). These require a completed graduate program and typically carry higher stakes, since NP certification is tied to prescriptive authority and independent practice in many states.
Other widely recognized certifications include medical-surgical nursing (CMSRN), oncology (OCN), pediatric nursing (CPN), and psychiatric-mental health. Each is administered by a different specialty board, so the application process and requirements vary.
How to Apply
Once you’ve confirmed your eligibility, the application itself is straightforward. Most credentialing bodies use an online portal. You’ll create an account, fill out your professional information, submit documentation of your clinical hours, and pay the exam fee. Some organizations require your employer or a supervisor to verify your practice hours.
After your application is approved, you’ll receive authorization to schedule your exam. Most certification exams are offered at Prometric testing centers or through live remote proctoring, giving you flexibility in when and where you test. You typically have a window of 90 days to a year to schedule your exam date after approval.
What Exams Cost
Exam fees vary by organization and membership status. As a reference point, the AANPCB charges $240 for members and $315 for non-members to take a nurse practitioner certification exam. Paper applications cost more, running $290 to $365. Retake fees are the same as the initial exam fee.
Membership in the professional organization that administers your exam almost always pays for itself through the fee discount. If you’re planning to certify, join the relevant organization first. Beyond the exam fee itself, budget for study materials, review courses, and practice tests, which can add another $100 to $500 depending on the format you choose.
Many hospitals reimburse certification costs, especially Magnet-designated facilities that value certified staff. Check with your employer’s education or professional development department before paying out of pocket. Some offer full reimbursement upon passing, while others provide vouchers upfront.
Preparing for the Exam
ANCC recommends starting your study plan about three months before your exam date. That timeline works well for most specialty certifications, though more complex exams like NP boards may warrant four to six months of preparation.
Start by downloading the Test Content Outline from your credentialing body. This document breaks the exam into weighted domains so you know exactly what percentage of questions cover each topic area. It’s the single most useful study tool available, and it’s free. From there, gather your resources: the official review manual, a current textbook in your specialty, and sample questions or readiness tests.
Study methods that work well include finding a study partner or group, taking a formal review course (available online or in person), and working through practice questions under timed conditions. ANCC and other organizations offer simulated practice tests at Prometric centers or through remote proctoring, which helps you get comfortable with the testing environment before exam day. Review courses are particularly useful for identifying gaps in your knowledge, since they cover the full breadth of testable content in a structured format.
Focus your heaviest study time on the domains weighted most heavily on the exam and on topics you encounter least often in your daily practice. Nurses who work night shift in a cardiac ICU, for example, may need extra preparation on pulmonary or neurological content they see less frequently.
Keeping Your Certification Active
Nursing certifications are not permanent. ANCC certifications renew on a five-year cycle. To recertify, you need to complete 75 continuing education contact hours during that five-year period. If you hold a nurse practitioner or clinical nurse specialist certification, 25 of those 75 hours must be in pharmacology.
Other credentialing bodies follow similar patterns. AACN’s CCRN certification also renews every three to five years depending on the pathway you choose, with options to recertify by exam or through a combination of continuing education and practice hours. BCEN data shows that over 6,500 nurses recertified their CEN credentials in a recent year, indicating most certified nurses do maintain their credentials over time.
Continuing education hours are available through conferences, online modules, journal-based learning activities, and academic coursework. Many employers offer free CE opportunities, and professional organizations include CE access as a membership benefit. Tracking your hours as you go, rather than scrambling at the end of your renewal cycle, makes recertification far less stressful. Keep a folder or spreadsheet with certificates of completion so you have documentation ready when your renewal date approaches.
Career Impact of Certification
Certification signals specialized expertise to employers, patients, and colleagues. Magnet hospitals actively encourage certification and often factor it into hiring, promotion, and clinical ladder advancement. In many facilities, certified nurses qualify for higher pay differentials or bonuses.
Beyond compensation, certification can open doors to leadership roles, preceptor positions, and committee work. It also strengthens your resume if you decide to change specialties or move to a new health system. For nurse practitioners, certification is a legal requirement for practice in most states, making it non-negotiable rather than optional.