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667 HAZWOPER for General Site Workers VIII
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Controlling Confined Space Hazards

Once hazards are identified, it is critical to institute appropriate control measures to eliminate or, if not possible, reduce and control confined space hazards.

The moment of entry is the most critical and dangerous part of confined space entry

This module discusses the "Hierarchy of Controls" strategies to control confined space hazards.

The moment of entry is the most critical and dangerous part of confined or enclosed space entry, so it's important to know what hazards might be present so you can mitigate them. Injuries from fires, explosions, falls, and unsafe atmospheres may be avoided with careful preparation and adequate testing.

Remember, acceptable entry conditions must be attained before entry, and those safe conditions must be maintained throughout the duration of an entry. This module also explains some of the procedures and precautions that should be in place to safeguard entrants while they are working in the confined space.

Knowledge Check Choose the best answer for the question.

4-1. What is the most critical and dangerous part of confined space entry?