In two previous experimental observational studies, the Safe-Playing Kit, a program with empirically proven potential for reducing the risk of pedestrian accidents to preschoolers, was developed. The purpose of the present study was to field test a prototype of the kit in 17 diverse preschools and day care centers located in eight states. Feedback on the process of implementation came from evaluations and suggestions made by preschool teachers, parents, and administrators, as well as through two concept probes employing children's responses to storybook situations, one administered before and one after the program was implemented. Results indicated that most teachers and parents felt the program was successful. In addition, children showed highly significant gains in scores on pretests and posttests following the use of the program. It was concluded that the Safe-Playing Kit can be implemented in a diversity of communities, preschools, day care centers, and families across the country and that the program can be successfully conducted by trained teachers and parents as a part of their everyday activities. Forms of and results from the teacher's survey, as well as versions of the parent surveys, are appended along with a description of methods used and results obtained from the children's responses to storybooks and concept probes. (Author/MP)