Which of the following sets lists items typically restricted to on-site handling?

• A. Fully fired devices, intact components, and compatible chemical components
• B. Unfired devices, damaged devices, and incompatible chemical components
• C. Recycled devices, empty casings, and routine tools
• D. Safe water, empty packaging, and nonflammable solvents

Answer: (B)

Unfired devices, damaged devices, and incompatible chemical components are the items kept on-site because they carry the highest immediate hazards if moved or mishandled. Unfired devices may still be armed or sensitive and could ignite or detonate with shocks, friction, or temperature changes, so trained personnel and the proper environment on-site are essential to control the risk. Damaged devices often have compromised casings, weakened fuzes, or internal defects that can fail unpredictably; transporting them could trigger a dangerous release or detonation, so they stay where they can be secured and properly neutralized if needed. Incompatible chemical components can react violently if they mix, are jolted, or experience temperature changes during transit, so keeping them on-site allows strict separation and containment under supervision. By contrast, fully fired devices are typically inert after use, intact components and compatible components can be handled or transported under standard safety rules, and recycled devices, empty casings, routine tools, as well as nonhazardous items like water or empty packaging generally don’t require on-site restriction.