An "MSDS" is a Material Safety Data Sheet, a document which summarizes the purpose, hazards, and other information about a substance or material. Different government jurisdictions and industries have differing MSDS requirements. In the interests of public and worker safety, however, their MSDS libraries are frequently shared. This category contains sites that link directly to MSDS information, or which provide directories, search engines, or other gateways related to chemical safety or MSDS information.