What is the required action when using ladders above a certain height?

When using ladders above a certain height, clearing the area above is crucial. This action ensures that there are no overhead hazards, such as power lines, tree branches, or other objects that could pose a danger during ladder use. By removing or avoiding these hazards, the risk of accidents such as electrical shocks or injuries from falling objects is significantly reduced.

While securing tools, ensuring a level ground, and wearing a harness are important safety measures in different contexts, they do not directly address the specific risks associated with working at heights where overhead hazards may be present. It is essential to prioritize clearing the area above to create a safe working environment when using ladders.