This monograph is designed to help employers, employees, managers, and union officials develop effective workplace policies and programs to prevent drug and alcohol abuse and other health problems. The text of the monograph: (1) presents information regarding the costs of drug and alcohol use in the workplace, and evidence of potential cost-savings (in dollars and in human energies and aspirations) that may have resulted from different programs; (2) describes the evolution of programs in the workplace, including evolution from single- to multi-problem area programs and the options available, ranging from primary prevention to treatment and rehabilitation; (3) describes different types of programs that have been introduced; and (4) briefly analyzes issues to consider in developing and implementing a primary prevention/early intervention program in the workplace. A reference list and an appendix listing sources of additional information about drug abuse prevention/health promotion programs in the workplace are included. (Author/WAS)