It varies a lot by location/jurisdiction, especially in a place like the US where our waste stream is a confusing mishmash of governments of different levels an

It varies a lot by location/jurisdiction, especially in a place like the US where our waste stream is a confusing mishmash of governments of different levels and various partnerships with private waste companies who end up outsourcing a lot of their recycling. Some places will allow bioplastics to be municipally composted at an industrial plant near the city. Rural places don't typically have such facilities and plastics just go in the trash to be landfilled. Other places just burn their trash in the backyard. And depending on the jurisdiction, there may or may not be any laws or regulations about any of this stuff. It's basically up to the states and local governments to decide for themselves, which means there's like hundreds of different variations across the country.