You may hear that OSHA does not have a Heat Illness Prevention Rule and that would be true at the Federal level. In Oregon and Washington, employers who have workers exposed to 80 degrees or higher based on the Heat Index are required to comply with State initiated heat illness rules.
This includes:
Implementing written program which details how employers will;
Provide ready access to shade
How employees will have access to minimum supply of cool or cold water
Establish an emergency medical plan to include heat illness response
Develop an acclimatization plan for workers
Apply an overall heat illness prevention plan
Document supervisor & employee annual training
Create rest break schedules during High Heat periods
The NIETC has sample written programs for both OR & WA and can conduct onsite training when requested. Contact Barry Moreland for more information.