A seat belt education campaign conducted in Canada to dispel myths surrounding seat belts and promote a better understanding of their functions was evaluated. Two telephone surveys, each comprised of 4,000 respondents, were conducted. The first was done immediately before the campaign and the second immediately succeeding the campaign. Also, a survey of 800 persons was conducted five months after the campaign ended. The evaluation indicated that eighty-five percent of the population recognized at least one part of the campaign. While the respondents could not spontaneously recall radio or newspaper advertising, they were capable of recalling commercials viewed on television. There were some attitude changes from pre- to post-campaign, and these changes were specific to the campaign element viewed, read, or heard. The most successful element was the "pumpkin" commercial, which produced a significant decrease in the number of people who believed that it is better to be thrown clear in a car crash. Seat belt use increased only in Ontario where the introduction of compulsory seat belt legislation coincided with the campaign. The follow-up survey indicated that recognition of the television and radio commercials remained strong five months after the campaign concluded. (Scripts of radio and television commercials, copies of newspaper ads, the survey questionnaires, and eight tables of data are appended.) (EM)