After hot work is completed, for how long must the authorization be available for inspection?

The correct response regarding the period for which the authorization for hot work must be available for inspection is 48 hours. After hot work operations are completed, safety regulations require that the authorization, which confirms that the necessary precautions were taken, be kept accessible for inspection for a specified duration.

This 48-hour period is designed to allow sufficient time for inspection by safety personnel or fire marshals to ensure that all safety protocols were properly followed and that no risks remain after the hot work is completed. Keeping the authorization readily available enhances accountability and promotes adherence to safety practices within a work environment that involves fire hazards.

The other options do not align with this standard period, which emphasizes the need for diligence in safety inspections following hot work activities. It's essential for those involved to understand and comply with this regulation to maintain safety and avoid potential fire incidents.