Recently, California — joined by 21 other states — turned to the courts to contest final regulations issued by the National Highway Traffic Safety Administration (NHTSA) and the U.S. Environmental Protection Agency. The agencies have ruled that federal law pre-empts state and local tailpipe greenhouse gas emissions standards, as well as zero emission vehicle mandates. The lawsuit raises several issues, including whether federal agencies have authority to pre-empt state vehicle emissions standards. Read the analysis by OMA Connections Partner Jones Day regarding what appears to be a long, intense legal battle. 11/4/2019