State Requirements
What's Required in Your State?
While the federal OSHA standard does not yet include a dedicated heat illness prevention rule, several state occupational safety and health programs have implemented their own heat injury and illness regulations.
Each of these state plans includes unique requirements—such as temperature or heat index thresholds, indoor versus outdoor coverage, and specific provisions for shade, water, and rest. Some also have sector-specific rules, like Colorado’s focus on agricultural workers. Because these requirements can differ between states, it’s important to review the standard that applies to your location or worksite.
If you work in one of the states listed below, click the state that applies to you to review the requirements that differ from the ANSI/ASSP A10.50 standard: