For temporary storage, who must be in contact or within sight?

For temporary storage, who must be in contact or within sight?

• A. The blaster, limited blaster, or handler
• B. A supervisor
• C. Any visitor
• D. A safety officer

Answer: (A)

The key idea is that the person responsible for the blast must have immediate control over and visibility of the temporary storage. The blaster, limited blaster, or handler is the one who knows the blast plan, has access to the initiation system, and is accountable for the explosives. Being in contact with or within sight of the storage area ensures they can monitor the materials, enforce access restrictions, and respond immediately to any hazards, tampering, or misfires. This direct oversight minimizes risk because decisions and actions can be taken without delay. A supervisor might oversee operations, but the rule targets the person who actually handles and controls the explosive materials. A safety officer plays an important safety role, but not the specific on-site control of temporary storage during blasting. Visitors should not be near the storage area due to safety concerns. So, the requirement that the blaster, limited blaster, or handler be in contact or within sight ensures the right person with the right authority and training maintains direct, immediate control over the stored explosives.

The key idea is that the person responsible for the blast must have immediate control over and visibility of the temporary storage. The blaster, limited blaster, or handler is the one who knows the blast plan, has access to the initiation system, and is accountable for the explosives. Being in contact with or within sight of the storage area ensures they can monitor the materials, enforce access restrictions, and respond immediately to any hazards, tampering, or misfires. This direct oversight minimizes risk because decisions and actions can be taken without delay.

A supervisor might oversee operations, but the rule targets the person who actually handles and controls the explosive materials. A safety officer plays an important safety role, but not the specific on-site control of temporary storage during blasting. Visitors should not be near the storage area due to safety concerns. So, the requirement that the blaster, limited blaster, or handler be in contact or within sight ensures the right person with the right authority and training maintains direct, immediate control over the stored explosives.