A worker discovers an underground utility vault that needs to be entered for inspection. Before entry, what is the FIRST step that must be taken according to OSHA confined space procedures?
Correct Answer
D) Determine if the space meets the definition of a permit-required confined space
The first step is to evaluate whether the space meets OSHA's definition of a permit-required confined space. This determination drives all subsequent safety procedures and requirements for entry.
Why This Is the Correct Answer
OSHA 29 CFR 1926.95 requires that before any entry procedures begin, employers must first determine whether the space qualifies as a permit-required confined space. This initial classification determines whether a permit is needed and which specific safety protocols must be followed. All other safety measures (atmospheric testing, communication, ventilation) are contingent upon this initial determination. Without this classification step, workers cannot know which level of protection and procedures are required.
Why the Other Options Are Wrong
Option B: Test the atmosphere for oxygen, flammable gases, and toxic substances
Mechanical ventilation may be required depending on the space classification and atmospheric conditions, but this determination cannot be made until you first classify the space and assess its hazards.
Option C: Set up mechanical ventilation
While atmospheric testing is critical and required before entry, it comes after determining if the space is permit-required. You cannot establish proper testing protocols without first knowing the classification of the space.
Memory Technique
Think 'Before you PERMIT entry, you must first DETERMINE if a permit is required.' The word 'permit-required' in the correct answer is your key - you can't get a permit until you know if you need one.
Reference Hint
OSHA Construction Standards 29 CFR 1926.95 - Personal Protective Equipment, and 29 CFR 1910.146 - Permit-Required Confined Spaces (often referenced in construction)
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