What is the proper order to follow if a chemical spill occurs?

• A. Control, Contain, Clean, And Call
• B. Contain, Control, Clean, And Call
• C. Control, Contain, Clean, And Call
• D. Contain, Clean, Contain, And Call

Answer: (C)

The key idea is acting in a safety-first sequence during a chemical spill. Start by taking control of the situation to stop the source and protect yourself and others. This means shutting off the spill at its source, turning away from the hazard if necessary, and ensuring people move to safety. Next, contain the spill so it doesn’t spread to new areas, drains, or waterways. Use barriers, absorbents, or berms to confine the material where it is. Only after the spill is under control and contained should you begin cleaning up, so that cleanup won’t cause the material to migrate or aerosolize. Finally, call for help or notify a supervisor or emergency responders once the hazard is stabilized so professionals can assist with any remaining risk and proper disposal.

If you tried to clean before containment, or call before you’ve secured the area, you’d be increasing exposure and the potential spread of the chemical. Following this order—control, contain, clean, then call—keeps people safe and the spill manageable.