2021 U.S. Scrap TIre Workgroup (USSTWG)

Only a few states conduct scrap tire research • Examples include: • California – Rubber modified asphalt zinc research – Research to design stormwater infiltration galleries that use TDA to assess their ability to reduce microplastics • Michigan • Colorado • Kentucky and Tennessee had grants to help develop DOT specifications What opportunities exist to increase state research to support market growth? 19