Rehabilitation is a specialty area with defined competencies and discrete nursing knowledge. Nurses need to be educated in the basic competencies of rehabilitation to provide safe, quality care to patients with chronic illnesses and disabilities. A critical appraisal of the literature showed that education increased knowledge in a specialty area and had positive benefits for nurses, organizations, and patients. The purpose of this paper is to describe an evidence-based educational intervention. Self-study modules on 15 rehabilitation competencies were developed for 16 nurses working on a new inpatient unit. Outcomes were evaluated using pre and post tests via the online Association of Rehabilitation Nurses (ARN) Competency Assessment Tool (CAT). Data were analyzed using the SPSS14.0 statistical package. Paired t-tests demonstrated a significant difference between pre and post test scores on 14 of the 15 competencies measured. Findings suggested that education of nursing staff resulted in increased knowledge about rehabilitation nursing competencies.