What are the bin color codes for dry solid waste in zoned areas?

• A. Yellow bins for clean waste; Green for active
• B. Blue bins for clean; Red for active
• C. Green bins for clean waste; Yellow bins for active
• D. Green for clean waste; Yellow for active

Answer: (C)

Color-coding waste streams lets workers identify how to handle materials at a glance. For dry solid waste in zoned areas, green bins are designated for clean waste that is uncontaminated and can be disposed of through standard or recycling streams. Yellow bins are reserved for active waste—materials that are still in use or may be contaminated in the zone—requiring additional precautions and containment. This separation reduces the risk of cross-contamination and keeps handling and disposal processes clear and consistent. If you’re ever unsure, check the site’s specific color policy, since practices can vary, but this green-for-clean and yellow-for-active approach is the one described.