HazCom is short for Hazard Communication, it refers to OSHAâ€s Hazard Communication Standard which addresses chemical hazards and safety in the workplace. The Hazard Communication Standard is an American-wide system that has been in place since 2012. Itâ€s based on the principle that workers have a need and the right to know about the hazardous materials that are at their workplace, as well as the appropriate protective measures to prevent unwanted health effects.