smartdriveTop StoriesEmissionsTrump EPA orders review of California emissions waiversEPA Admin Lee Zeldin has submitted waivers granted to California for its Advanced Clean Trucks (ACT) and Omnibus NOx rules under the Biden Administration for congressional review.BusinessFalling volumes and spending signal market reboot challengesBusinessLeasing vs. buying: key financial and maintenance factorsRegulationsNew Jersey home to worst freight traffic in the U.S. for seventh year in a rowBusinessReport shows truck driver shortage costs freight industry $95.5 million weekly