Navistar's compliance with the california transparency in supply chains act of 2010: navistar, inc. issues this statement on behalf of itself and its subsidiaries and designated third parties (collectively "navistar"). navistar is in the process of creating a methodology to verify its supply chain to evaluate risks of human trafficking and slavery. the process is expected to be risk-based. navistar is also establishing an audit program to evaluate supplier compliance with the company's standards regarding human trafficking and slavery. the company requires direct suppliers to certify that materials incorporated into its products comply with laws prohibiting slavery and human trafficking.