These standards reach further than people realize. You have local and state clean air agencies that have various levels of authority and enforcement power, who use these kinds of regulations to set local standards, and declare “smog emergencies” and the resultant burn bans.
Here locally, the burn bans go into effect in the winter, usually during the coldest days when a temperature inversion might form, and the SW Washington Clean Air Agency issues either a Stage I or II burn ban. Stage II means no wood stoves at all, unless it is your primary heat system. All it does is spike the electric demand when everyone kicks on the heat pump or electric baseboard heaters all at once.
I swear, there is a segment of our society that will not be happy until we are all living in caves, or Communist Chinese re-education camps...
Before moving up here we lived in Jackson County, OR and they had the same type no burn regs in winter because of inversion layers on some days in the Medford Valley.
At least then people that only had wood heat could could burn but I don’t know what goes on now, I’d suspect they’ve phased them out. We used wood when we could but also had electric forced air.
The gov just keeps getting more and more intrusive in what we can and can’t do but this ozone and CO2 thing is really going over the edge, there’ll be big trouble if passed.