It can be slightly more complicated with things like CARB which has an explicit waiver in the Clean Air Act to enact its own standards and given how big it is i

It can be slightly more complicated with things like CARB which has an explicit waiver in the Clean Air Act to enact its own standards and given how big it is it basically ends up setting de facto standards for the state (it’s one of the big complaints from Republican states). A similar issue comes up around education although things are a bit more even there with Texas and Florida also using the size of their markets to set their version of education standards.