This handbook is intended to aid Job Training Partnership Act (JTPA) program staff to design, implement, and evaluate training programs for older workers under Section 124 of JTPA. The guide contains four main parts. The first part of the guide presents an overview of the JTPA and its provisions regarding services to older workers. This part of the handbook also describes the work of the National Commission for Employment Policy and its role under the new legislation. Part 2 discusses four steps in the design of a training program for older workers, first from the perspective of the older workers, and then from the perspective of employers. This part also reviews some of the administrative issues of program development. The third part of the guide outlines the various components of JTPA programs for recruiting, training, and placing older workers. Finally, part 4 discusses the ways that program evaluation can improve program operations and the data needed to assess a program's effectiveness. Program evaluation is also examined from the perspective of older participants, employers, and the community that the program serves. Appendixes to the document include (1) abstracts of the National Commission for Employment Policy research studies, (2) lists of research papers abstracted and other references, (3) lists of organizations focusing on older workers, and (4) a synopsis of a study on older workers in industry. (KC)