Objectives: Confirmatory factor analysis (CFA) was used to assess the factor structure of the 15-item Job-Related Tension Index (JRTI). Method: Data were derived from a larger cross-sectional study using a modified tailored design method to mail a self-administered survey to a random stratified sample of the National Association of Social Workers, Maryland Chapter. The 15-item four-factor structure described by Rogers, Li, and Ellis was tested. Results: CFA resulted in a 12-item three-factor structure with acceptable fit. JRTI internal consistency reliability was 0.87. Conclusion: Findings are preliminary but suggest the JRTI may be useful in examining job-related tension among social workers. Future research is needed to further develop the JRTI and establish its reliability, validity, and factor structure.