This guide is intended to help State traffic safety organizations, associations of bars, restaurants, and clubs; local and State government agencies; and others to develop or refine DDPs for adults. The guide focuses on how to develop and operated both drinker-based and server-based DDPs in an entire community. The guide discusses DDPs that operate year-round, but also should help those who want to operate DDPs for limited periods, such as during weekends and holidays. Nine sections included in the guide are: using a community-wide and comprehensive approach; staffing the program; establishing a community coalition; marketing the program; operating the program; publicizing the program; obtaining resources; evaluating the program; and additional sources for assistance. Information for the guide was obtained from various sources including two studies funded by the National Highway Traffic Safety Administration; conversations with researchers and operators of DDPs; a literature review; and a review of materials developed by existing DDPs. A listing of manuals and kits for DDPs is provided. A sample brochure and other promotional and instructional materials developed for a DDP in Haverhill, Massachusetts also is provided. References