FDNY COF for Flammable-Refrigerant Refrigeration Systems (B28) Practice Test

A permit is the formal written authorization that allows someone to perform a defined task under regulatory requirements. It lays out the exact scope of work, where and when it will be done, the hazards involved, the safety controls required (PPE, ventilation, fire watch, etc.), and who is overseeing the task. This keeps work within the rules and ensures that all necessary safety precautions and regulatory checks are in place before anything starts.

Hazard analysis is about identifying and evaluating risks, not granting permission to work. Monitoring refers to ongoing checks during or after work to verify safety and compliance, not to authorizing the activity itself. An interlock is a safety device that prevents equipment from operating unless certain conditions are met; it’s a control, not a document that authorizes a defined task.