What Nephrology Nurses Need to Know About the 2026 CNN and CDN Certification Changes: Implications for Eligibility, Exam Preparation, and Specialty Practice.

The Nephrology Nursing Certification Commission is updating the Certified Nephrology Nurse and Certified Dialysis Nurse certification programs in 2026 based on national practice-analysis findings. These changes include revised examination blueprints, standardized eligibility criteria, removal of the baccalaureate-degree requirement, and clearer differentiation between dialysis-focused and broader nephrology nursing practice. This article explains the rationale for the updates, summarizes key transition dates, interprets available education and practice-scope data, and provides practical guidance for nurses, educators, employers, and review-course developers. Under standing these changes can help nephrology nurses select the appropriate credential, prepare effectively, and align certification with contemporary specialty practice.