 It would do several things, starting with requiring employers to come up with plans to deal with heat. Like, what do they do if someone gets sick? Where can people go to cool down? The second big thing, it gives workers some rights to water, shade, and breaks when it's hot. The water and shade requirements kick in above 80 degrees on the heat index. That's the feels-like temperature. Then when it gets to 90, workers would get paid rest breaks, and employers would have to make sure workers aren't getting sick from heat. Okay, seems pretty straightforward.