When must an S-60 Watchperson be on duty at a construction site?

An S-60 Watchperson must be on duty at a construction site during all hours when operations are not in progress to ensure safety and security at the site. This requirement is crucial because it helps to monitor any potential hazards that may arise and provides a level of security to protect the site and its materials from theft or vandalism.

When construction operations have ceased for the day or during breaks, there can still be risks associated with the site, such as unsecured equipment, materials, or open excavations. The presence of a watchperson serves as a deterrent against unauthorized access and provides immediate response capabilities in the event of an emergency or safety violation. This continuous oversight helps to maintain a safer construction environment for workers and the surrounding community.

The other options do not encompass the full responsibility of the watchperson. Having a watchperson present only during demolition operations, when the supervisor is present, or during periods of inactivity could lead to risks that compromise safety on the site. Thus, ensuring the watchperson is on duty whenever operations are not actively taking place is essential for maintaining safety standards as outlined by regulations.