The correct option is 5 feet. Under OSHA regulations, protections such as shoring or trench boxes are generally not required for excavations that are made entirely in stable rock or are less than 5 feet deep.
Your employer has the ability to protect you from cave-ins and other hazards by using adequately-designed protection systems in excavations, but these are not required when an excavation is made entirely in stable rock or is less than how deep?
Select the best option.
5 feet
10 feet
15 feet
1 answer