OSHA has established a system of tools (eTools and the eMatrices) that are “stand-alone,” interactive, Web-based training tools on occupational safety and health topics. They are highly illustrated and utilize graphical menus. Some also use expert system modules, which enable the user to answer questions, and receive reliable advice on how OSHA regulations apply to their work site. Selected eTools are available as downloadable files for off-line use. Addtionally, there are Expert Advisors (based solely on expert systems) and v-Tools which are prevention video training tools.