Abstract
This report summarizes the effectiveness of mandatory approaches to increase safety belt usage. The report will be of particular interest to safety practitioners with responsibility for developing and implementing safety belt usage programs. It focuses on the impact of legislation, enforcement, and sanctions in increasing safety belt usage. It finds strong and consistent evidence of past and current legislative and enforcement efforts, as well as consistent evidence suggesting the importance of sanctions. (Author/publisher) This report may be accessed by Internet users at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_601.pdf