A United States-Mexico-Canada Agreement (USMCA) Chapter 31 Dispute Resolution Panel concluded that automakers may continue to use the longstanding practice of “roll-up” when calculating the percentage of North American-originating materials used in the production of core automotive parts (e.g., engines) that is subsequently factored into the computation for determining the total amount of originating content (the “regional value content” or “RVC”) for passenger vehicles and light trucks.