An integrated package of methods is presented for evaluating the benefits and costs of USCG recreational boating safety (and similar) programs and regulations. A general procedure for developing specific accident model data bases is presented along with a selection guide of model forms. An Accident Recovery Model is described in depth and used to develop benefit estimations. Guidelines for and examples of the multistate benefit analysis technique are presented. The Box-Jenkins approach to time series analysis is described and used to generate forecasts of future boating fatalities. Equations are developed for predicting the potential benefits of contemplated regulations. Analytic techniques, including intervention analysis and Benefit Assessment Diagram methods, are presented for assessing the past benefit effects of USCG regulations. Benefit evaluation examples include the level flotation, safe powering, safe loading, and basic flotation regulations. Some basic interrelationship models are presented to illustrate the nature of the marine market and the cost transfers required for tracking cost elements.