Who controls the time of blasting operation?

• A. The blasting crew
• B. The inspector
• C. The owner
• D. The employer or his delegated representative

Answer: (D)

Timing of blasting is controlled by the person who has the employer’s authority to direct and supervise blasting operations—the employer or someone the employer has designated to oversee blasting. This person issues blasting orders, sets when blasts occur, and ensures the work follows the blast plan, permits, safety checks, and site conditions. The crew carries out the blasting under those orders, not by independently deciding the timing. The inspector enforces rules but does not manage the blast schedule daily, and the owner, while responsible for the project, does not automatically control blasting timing unless that authority has been delegated.