Temperatures are rising rapidly, however, there are no federal guidelines that address working in extreme heat. The Occupation Safety and Health Administration has a number of recommendations regarding staying cool and safe when working in high temperature environments. These recommendations include implementing a buddy system and ensuring that new workers do not spend more than 20% of their first workday in the heat. Last week, representatives from Arizona and California introduced a bill that would require paid water breaks and access to water in dangerous heat conditions.
See "Chicago’s temperatures are set to soar, but no federal law covers working in extreme heat. Here’s how to stay safe.", Abdel Jimenez, The Chicago Tribune, July 17, 2019