Alternative Entry Preconditions
Before the employer can use alternate permit space entry procedures, there are certain preconditions that the employer must verify.
Continuous forced air ventilation alone is sufficient to maintain that permit space safe for entry.
Verification is accomplished with supporting monitoring and inspection data that:
- All physical hazards in the space are eliminated or isolated through engineering controls so that the only hazard posed by the permit space is an actual or potential hazardous atmosphere;
- Continuous forced air ventilation alone is sufficient to maintain that permit space safe for entry;
- If, in the event the ventilation system stops working, entrants can exit the space safely;
- If, in the event initial entry to a permit space is necessary to obtain supporting data, required entry will be performed in compliance with OSHA Standard 1926.1204 through 1211;
- All determinations and supporting data are properly documented and made available to each permit space authorized entrant and the authorized representative; and
- Permit space entry will comply with the requirements set forth in OSHA Standard 1926.1203(e)(1).
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3-7. What must an employer prove before using alternate permit space entry procedures?
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