The subject of special education teachers' intentions to leave has been a longstanding concern of researchers and practitioners. This paper reports on a study that examined the workplace predictors of teachers' intentions to leave for a nationally representative USA sample of 2,060 secondary school special education teachers (with students aged approximately 13-18). Structural equation modeling was used to assess the plausibility of a conceptual model, specifying linkages among special education teachers' perceptions of workplace factors, job satisfaction and commitment, and teachers' intentions to leave. Using the 2007-2008 Schools and Staffing Survey data set, two models were tested to assess job satisfaction and commitment as mediators. Administrative support and teacher team efficacy had strong, significant direct and indirect effects on special education teachers' intentions to leave. Teacher job design/autonomy, poor socio-economic/human conditions, and student disengagement also exerted significant indirect effects through satisfaction and commitment. However, administrative support and team efficacy were the most important for these teachers in their effects. Among several demographic variables, teacher age was the most powerful demographic factor, with more experienced teachers having lower intentions to leave. The authors suggest that several conditions and attitudes embedded in the teachers' responses are influenced by administrators. [This work was conducted with permission from the Institute of Education Sciences for use of the Schools and Staffing Survey (SASS) data set.]