Under what circumstance can an entry supervisor cancel the entry permit?

The entry supervisor can cancel the entry permit when new conditions exist or when the assignment is completed. This is crucial for maintaining safety in confined spaces. The entry permit system is designed to ensure that all hazards are identified and mitigated before entry begins. If conditions change—such as the presence of new hazards, changes in the atmosphere, or any situation that may compromise safety—the supervisor has the responsibility to terminate the entry to protect the health and safety of workers.

Additionally, once the work that required the entry is completed, it is also appropriate for the supervisor to cancel the permit. This action ensures that the confined space is no longer occupied unnecessarily, preventing any potential hazards associated with extended presence in a confined space.

Maintaining the integrity of the entry permit process is essential for compliance with safety regulations and for promoting a culture of safety in the workplace.