How often must excavation sites be inspected by a competent person?

The correct answer emphasizes the importance of regular inspections at excavation sites to ensure safety. Inspections must be conducted daily before work begins and additionally whenever conditions change. This practice is essential because factors such as weather, vibrations from nearby traffic or construction, and soil conditions can significantly affect the stability of the excavation site and the safety of workers. By performing daily inspections, a competent person can identify potential hazards, ensure compliance with safety regulations, and take appropriate action to mitigate risks before work commences. This proactive approach helps prevent accidents and ensures a safer working environment for everyone involved in excavation activities.