We already had a thread a week ago.
The bill broadly does away with many different local commercial regulations. It doesn't mention water breaks or construction specifically, that is just one thing that will be affected.
There's a lot to be said for letting localities set their own rules on these kinds of things, especially where state regulations are lacking. On the other hand it does cost time and resources for businesses to have to comply with different rules depending on what place they are working in from one day or week to the next.
Employers still have to comply with OSHA standards, though some argue they don't go far enough.
https://www.osha.gov/heat/worker-information
