Which step should be done first when handling hazardous materials?

• A. Identify hazard
• B. Use PPE
• C. Segregate materials
• D. Dispose according to regulations

Answer: (A)

Identifying what hazard you’re dealing with is the essential first step when handling hazardous materials. Knowing the exact hazard type—whether a chemical is flammable, corrosive, toxic, reactive, or oxidizing—lets you choose the appropriate controls from the start. Labels, Safety Data Sheets, and container markings guide this classification, flagging what protective measures are needed and what handling rules apply.

Once you know the hazard, you can select the proper personal protective equipment, determine how to segregate materials to prevent incompatible combinations, and follow the correct disposal procedures under regulations. Jumping ahead to PPE, separation, or disposal without identifying the hazard risks applying the wrong protections, mixing incompatible substances, or violating disposal rules, because those decisions depend on the specific hazard you’re dealing with.