TI Automotive claims to have developed the world's first plastic fuel tank to meet California's strict Partial Zero Emission Vehicle (PZEV) requirements. Named Permblok AS6, the tank is built with six layers of material to reduce fuel permeation and exceed rigorous crash-test standards. It was co-developed in partnership with the French petrochemical company Atofina at TI Automotive's research facility in Rastatt, Germany.