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Washington State DOSH Outdoor Heat Standard (WAC 296-62-095) — Heat Stress Work/Rest Limits

Washington State DOSH outdoor heat exposure rule (WAC 296-62-095). Requires shade, water, rest, and acclimatization controls when outdoor air temperature reaches the action level.

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Authority
Washington State Department of Labor & Industries (L&I/DOSH)
Jurisdiction
Washington State Us
Legal status
Regulation
Rule type
Schedule Engine
Standard ID
HGC-056

Governing formula

No standalone formula is published for this standard; see programmable logic and parameters below.

Work/rest limits

Assumes standard (non vapor-barrier) work clothing. Vapor-barrier/nonbreathable clothing lowers the action level to 52°F (11.1°C) instead of 80°F (26.7°C).

Air temperature (°C)Result
1560 / 0 min work/rest per hr
1660 / 0 min work/rest per hr
1760 / 0 min work/rest per hr
1860 / 0 min work/rest per hr
1960 / 0 min work/rest per hr
2060 / 0 min work/rest per hr
2160 / 0 min work/rest per hr
2260 / 0 min work/rest per hr
2360 / 0 min work/rest per hr
2460 / 0 min work/rest per hr
2560 / 0 min work/rest per hr
2660 / 0 min work/rest per hr
2760 / 0 min work/rest per hr
2860 / 0 min work/rest per hr
2960 / 0 min work/rest per hr
3060 / 0 min work/rest per hr
3160 / 0 min work/rest per hr
3260 / 0 min work/rest per hr
3350 / 10 min work/rest per hr
3450 / 10 min work/rest per hr
3550 / 10 min work/rest per hr
3650 / 10 min work/rest per hr
3750 / 10 min work/rest per hr
3845 / 15 min work/rest per hr
3945 / 15 min work/rest per hr
4045 / 15 min work/rest per hr
4145 / 15 min work/rest per hr
4245 / 15 min work/rest per hr

Inputs

Required inputs: airTempC

Optional inputs: workload, acclimatization, ppe

Sources

Update history

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