The Hazard Communication Standard (HCS) requires chemical manufacturers, distributors, or importers to provide Safety Data Sheets (SDSs) (formerly known as Material Safety Data Sheets or MSDSs) to communicate the hazards of hazardous chemical products.  This standard also the requires that employer's compile an inventory of all hazardous chemicals in the workplace and make available to the employees, the SDS for each chemical.  Furthermore, all employees should be trained on the hazards of each chemical and how to read and understand an SDS.  MSSE specializes in building Hazard Communication programs, compiling applicable SDS's for the workplace and training employees.