OSHA Confined Spaces FAQ
- Large enough that an employee can enter it and perform work, but
- Not designed for continuous employee occupancy, and
- Has limited or restricted means for entry or exit.
- It contains, or has the potential to contain, a hazardous atmosphere (e.g., toxic gas in a sewer or carbon dioxide buildup in a space with poor ventilation);
- It contains a material that has the potential for engulfing a person who enters it (e.g., grain in a silo);
- It has an internal configuration with inwardly converging walls or downward sloping floors with small cross-sections that could trap or asphyxiate a person who enters the space; or
- It contains any other recognized serious safety or health hazard (e.g., exposed electrical elements or moving machinery)
- The space to be entered;
- The purpose of the entry;
- The date and authorized duration of the entry;
- The persons who are authorized to enter the space;
- The persons who will attend the entry from outside the space;
- The name and signature of the person supervising the entry;
- The hazards of the space;
- The measures used to isolate the space and eliminate or control the hazards of the space (lockout/tagout for mechanical hazards, ventilation/purging/
- inerting/flushing hazardous atmospheres, etc.);
- The conditions of acceptable entry;
- The results of initial and periodic testing, accompanied by the names/initials of testers and date of testing;
- The identity and means of contacting emergency services, should they be required;
- The procedures used by authorized entrants and attendants to communicate during the entry;
- Any equipment used by authorized entrants, attendants, the entry supervisor, or others to comply with the requirements of the PRCS Standard;
- Any other information necessary to ensure employee safety; and
- Any additional permits that may be required (i.e., for “hot work”).
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