A Material Safety Data Sheet (MSDS) is used by chemical manufacturers and importers to convey both the physical hazards pH, flashpoint, flammability, etc. and the health hazards carcinogenicity, teratogenicity, etc. of their chemicals to the end user. MSDSs are a critical component of the United States Occupational Safety and Health Administrations OSHA Hazard Communication Standard. This standard mandates that workers have a right to know what hazards are associated with the chemicals they use in the workplace. Both manufacturers of chemicals and employers with chemicals in their workplace, must be in compliance with this regulation as it is the most often cited violation by OSHA, with fines of more than $70,000 per violation per instance.