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Rulemaking to Protect Employees from Workplace Exposures to Excessive Heat


On March 10, 2020, Governor Brown issued Executive Order 20-04 (EO 20-04) that provides directives to certain state agencies in an effort to reduce greenhouse gas emissions (GHGs) and mitigate the impacts of climate change. EO 20-04 includes a directive to the Oregon Health Authority (OHA) and Oregon OSHA to jointly develop a proposal for standards to protect employees from workplace exposures to excessive heat and wildfire smoke. In response to EO 20-04, Oregon OSHA, in collaboration with the OHA, advisory committees, and stakeholders, will work towards developing two separate proposed standards.

Preventing Heat-related Illness

Workers who are exposed to sudden or excessive heat are at risk of developing heat-related illness. Heat-related illnesses include, heat rash and cramps, heat exhaustion, and heat stroke. As temperature and humidity increase, so does the level of risk to workers of developing potentially a life-threatening condition, especially when the body is generating its own heat when performing physical work. This situation is particularly serious when hot weather arrives suddenly or early in the season, before workers have had time to adjust to warm weather.

Contact Information:

Ted Bunch

Sarah Rew


On July 26, 2023, Oregon OSHA hosted a webinar that focused on process heat (such as in bakeries and foundries) in the heat illness prevention rules. The intent of this webinar was to clear up any confusion that may exist. The webinar presented, from an historical perspective, the language in the temporary heat illness prevention rules that were in effect the summer of 2021, the permanent heat illness prevention rules that became effective June 15, 2022, and the associated documents that details Oregon OSHA's intent regarding when heat is generated by a process versus ambient heat. Presentation: Oregon OSHA’s Heat Illness Prevention Rule and Process Heat presentation PPTX or PDF

Meeting Schedule: PDF  or Calendar 



May 9, 2022

January 28, 2022

November 15, 2021

September 16, 2021

August 16, 2021

August 2, 2021

June 23, 2021

May 26, 2021

May 6, 2021

April 16, 2021

March 25, 2021

March 4, 2021