Although Public Health Nurses (PHNs) represent the largest discipline of the local health department (LHD) workforce, significant gaps exist in workforce development and training opportunities. The passage of the Affordable Care Act outlines the expansion of prevention and public health programs which will require an additional need for qualified public health workers, including PHNs.  In North Carolina, PHNs have historically provided core public health services including physical assessment of adults, child health screenings, and clinical assessment for sexually transmitted diseases (STD). To assure the accessibility and quality of these services, the NC Division of Public Health (NCDPH) and the University of North Carolina Gillings School of Global Public Health collaborated to address ongoing shortages of adequately trained PHNs. The Enhanced Role Registered Nurse (ERRN) training program credentials PHNs currently working in LHDs to provide nursing services under standing orders in compliance with Medicaid billing guidelines. The competency-based program follows a sequence where PHNs participate in blended online and on-site learning covering population health, evidence-based practices, and standards of care along with a clinically supervised practicum. Over 20 years, the ERRN program has credentialed almost 700 PHNs in Physical Assessment of Adults, STD, and/or Child Health. This poster will provide an overview of the process and resources used to build a sustainable Enhanced Role PHN training program in North Carolina, how the program was tailored over time to address the changing public health landscape, and lessons learned from an academic-practice collaboration to maintain training and credentialing for the PHN workforce.