5 – A protective system is mandatory for any trench deeper than 5 feet to prevent cave-ins, and a competent person has the authority to deem such a system necessary even for trenches shallower than 5 feet.
4 – For trenches exceeding 4 feet in depth, a ladder is required to ensure safe entry and exit.
3 – The ladder must project at least 3 feet above the trench to facilitate easy access and egress.
2 – Excavated materials must be placed no closer than 2 feet from the trench edge to prevent collapse and ensure safety.
1 – It is essential to have at least one OSHA competent person on-site at all times to identify and mitigate hazards effectively.




