The application of educational technology to occupational safety and health training was reviewed. Advances in electronic technology in the past 20 years, primarily in computers, storage media and videotape systems enabled training packages to be delivered to a wide audience at a minimal cost, and could be used whenever convenient to the user. Multimedia systems used sound, graphics, video and text to transmit information to the user. While development costs appeared high, they were more than adequately offset by the fact that other expenses (trainer salaries, travel) were unnecessary. Interactive methods enabled trainees to study at their own pace, allowed pretests, posttests, and quick feedback, and made available a mass of information which could be accessed rapidly. Adult learning using multimedia methods was 38% to 70% faster than with traditional classroom instruction. Types of training systems included video based training (which included an innovative use of the Safety and Environmental Affairs Journal, with both videotape and audiotape), computer based training (which included use of the Directory of Safety Related Computer Resources which catalogued over 700 products dealing with some aspect of safety), distance learning (such as through the National Technological University), CD-ROM use (including use of the NIOSH bibliographic database NIOSHTIC, and RTECS (Registry of Toxic Effects of Chemical Substances) also maintained by NIOSH, as well as OSHA packages), interactive videodiscs, CD-I (Compact Disc Interactive), and virtual reality devices. The author concludes that future training will be over wide area networks which would eliminate the need to buy CD-ROM drives.