What is the required action for debris that exceeds a designated drop height?

Using an enclosed chute is the required action for debris that exceeds a designated drop height because it effectively prevents materials from falling freely and potentially injuring individuals or damaging property below. An enclosed chute guides the debris safely down to the ground or a designated collection area, reducing the risk of accidents associated with falling objects.

This method is particularly important in construction sites or high-rise buildings where debris management is critical to ensuring worker and public safety. Enclosed chutes can also promote better waste management practices by containing the debris and making it easier to transport the materials for disposal or recycling.

Other methods such as nets, warning signs, and barricades may help to mitigate risks, but they do not provide the same level of containment and control over falling debris as an enclosed chute does. While nets can catch falling debris, they do not eliminate the danger of materials bouncing off the net. Warning signs alert people to the danger but do not provide any physical protection. Barricades help restrict access to areas where falling debris is possible, but again, they are not a direct method of controlling debris fall.