The Program Standards Evaluation System was developed in response to evaluation requirements in the 1973 Rehabilitation Act. The system includes procedures for using standards data to monitor and evaluate vocational rehabilitation (VR) service outcomes and outputs as well as standards on key procedural issues. These guidance materials, volume 3 of the final report on the Program Standards System, contain an overview of the Program Standards System and descriptions of the standards, data elements, and data collection forms. Instructions for collecting the data are included, as is a description of the standards reports that will be generated by the Rehabilitation Services Administration's Management Information System. An appendix to this volume contains the program data requirements for the current version of the benefit-cost model for rehabilitation services. (KC)