![](https://resource-recycling.com/e-scrap/wp-content/uploads/sites/2/2020/03/US-EPA-20200325-By-JHVEPhoto-editorial-only-shutterstock_1677387112-web.jpg)
So far, 20 states have passed laws in the past few years to regulate chemical recycling as manufacturing. | JHVEPhoto/Shutterstock
In a letter to the EPA, 35 members of Congress urged the federal department to continue to regulate chemical recycling as combustion, not manufacturing, under the Clean Air Act.