OAR 437-002-0156
What is the jurisdiction for OAR 437-002-0156?
For OAR 437-002-0156, jurisdiction is Oregon; effective date is June 15, 2022; initial trigger temperature f is 80; initial trigger actions is Shade when heat index equals or exceeds 80°F; drinking water up to 32 ounces per hour; encourage and allow preventative cool-down rest periods; high heat trigger temperature f is 90, recorded from its source on 2026-08-17.
This standard applies whenever an employee performs work activities, whether in indoor or outdoor environments, where the heat index (apparent temperature) equals or exceeds 80 degrees Fahrenheit.
— osha.oregon.gov, retrieved 2026-08-17
- jurisdiction
- Oregon
- regulation citation
- OAR 437-002-0156
- effective date
- June 15, 2022 our reading
- initial trigger temperature f
- 80 verified
- initial trigger actions
- Shade when heat index equals or exceeds 80°F; drinking water up to 32 ounces per hour; encourage and allow preventative cool-down rest periods our reading
- high heat trigger temperature f
- 90
- high heat actions
- Mandatory rest break schedule: at heat index 90°F or greater, minimum 10 minutes every 2 hours; at 100°F or greater, 15 minutes every hour (Table 1 minimum). Simplified schedule option (Table 2): 90°F 10 min/2hr, 95°F 20 min/hr, 100°F 30 min/hr, 105°F 40 min/hr. Communication by voice or electronic means; buddy system or regular communication for lone workers; designated employee authorized to call for emergency medical services our reading
- coverage scope
- Indoor and outdoor; all industries where heat index equals or exceeds 80°F; exempt: incidental exposure under 15 min/hr, heat from work process, emergency operations, mechanically ventilated buildings below 80°F our reading
- acclimatization period days
- 14
- written plan required
- Yes our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
Source
- osha.oregon.govhttps://osha.oregon.gov/OSHARules/div2/div2J.pdf