Forest fire prevention data from ten different forest protection agencies in Canada were analyzed and evaluated. Data currently being collected fail to provide the information required for effective fire prevention programs. Information on the unsafe acts and conditions at the time and place of burning is required if protection staffs are to develop more specific education, engineering and enforcement programs to reduce wildfire occurrence. The sampling intensity for collecting tire prevention data does not seem to be justified in light of the minor variation in ignition causes between ears. The Canadian Institute of Forestry/Institut forestier du Canada. Abstract reproduced by permission.