Understanding the four ’haz’ terms
If your company uses chemicals, you’ve probably heard one or more of these terms: HazCom, HAZWOPER, Hazmat, and Hazwaste. These terms may cause confusion because several government agencies have rules for handling hazardous chemicals. Often, similar terms are used under the different rules.
HAZCOM
Hazard communication (HazCom) refers to a regulation from the Occupational Safety and Health Administration (OSHA). It describes a program of safety information and training that employers must provide to workers who may be exposed to chemical hazards. The program includes things like access to Safety Data Sheets, understanding labels on containers, and selecting personal protective equipment when using chemicals.
HAZWOPER
HAZWOPER is also a term from OSHA, and it stands for Hazardous Waste Operations and Emergency Response. If a hazardous substance is spilled or released, cleaning up the spill results in waste. Small spills might be cleaned up by workers with HazCom training, but responding to major (emergency) releases requires special training. Even workers who witness and simply report an emergency release need HAZWOPER training.
HAZMAT
Hazmat is short for hazardous materials and is used by the Department of Transportation. Hazmat regulations set rules for safely transporting hazardous chemicals, including requirements for labeling, placarding, shipping papers, and more. The goal is to maintain the safety and security of these materials during transport.
HAZWASTE
Hazardous waste (hazwaste) is a term used by Environmental Protection Agency to describe a type of solid waste that is usually created by industrial activities. The hazwaste rules do not focus on worker safety, but rather on preventing hazwaste from reaching the environment.