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PDFWAC 296-307-64402

Identify permit-required confined spaces.

If your workplace contains only nonpermit confined spaces and your employees do not enter another employer's confined space, you may follow only the requirements in:
– WAC 296-307-644, Identifying and controlling permit-required confined spaces; and
– WAC 296-307-654, Nonpermit confined space requirements.
You must:
• Identify all permit-required confined spaces in your workplace.
• Assume any confined space is a permit-required confined space, unless you determine the space to be a nonpermit confined space.
– If you enter the space to determine the hazards, follow the requirements in WAC 296-307-650, Permit entry procedures.
– If you evaluate the confined space and there are no potential or actual hazards, you can consider it to be a nonpermit confined space.
• Document your determination that the space is nonpermit, as required by WAC 296-307-654.
A permit-required confined space or permit space is a confined space that has one or more of the following characteristics capable of causing death or serious physical harm:
– Contains or has a potential to contain a hazardous atmosphere.
– Contains a material with the potential for engulfing someone who enters the space.
– Has an internal configuration that could allow someone entering to be trapped or asphyxiated by inwardly converging walls or by a floor, which slopes downward and tapers to a smaller cross-section.
– Contains any physical hazard. This includes any recognized health or safety hazards including engulfment in solid or liquid material, electrical shock, or moving parts.
– Contains any other recognized safety or health hazard that could either:
• Impair the ability to self rescue;
• Result in a situation that presents an immediate danger to life or health.
A nonpermit confined space is a confined space that does not contain actual hazards or potential hazards capable of causing death or serious physical harm.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 05-01-166, § 296-307-64402, filed 12/21/04, effective 4/2/05.]
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