In the contamination control area workflow, what step follows decontamination?

• A. Controlled access
• B. PPE
• C. Waste handling
• D. Continuous monitoring

Answer: (C)

After decontamination, waste handling is the next step. Decontamination reduces surface contamination, but the materials and liquids used during the process (wipes, disposable PPE, cleaning fluids, contaminated equipment) themselves become waste. They must be collected, contained, labeled, and moved into the appropriate waste stream or hold for disposal to prevent recontamination of clean areas and to meet regulatory requirements.

Controlled access and PPE are about entering and protecting personnel, not the immediate action that follows decontamination. Continuous monitoring is used to verify contamination levels, but it isn’t the physical next step—it supports the process by confirming cleanliness and guiding next actions, including waste handling.