This study attempted to identify critical components of a supported employment program that were strongly correlated with competitive employment outcomes in a state mental health system. Researchers used a supported employment fidelity scale to rate programs at ten community mental health centers in Vermont. The staff at the centers concurrently assessed competitive employment outcomes for 2,639 clients who had been diagnosed as having severe and persistent mental illness. Higher competitive employment rates were strongly correlated with overall program fidelity and with two program components, namely, providing services in the community as opposed to providing them in the clinic and using full-time employment specialists as opposed to staff with mixed roles.