The State of California’s decision to relax emissions mandates for rail and trucks but still enforce its Commercial Harbor Craft regulation is deeply concerning. It places vessel owners at a serious operational disadvantage and will drive cargo shipment to the state’s congested highways and over-utilized railways, denying customers and communities the option of the safest, most environmentally friendly, energy-efficient transportation mode. Most troubling is CARB’s choice to go full speed ahead on the regulation in spite of the safety risk to tugboat crews, as conveyed by the U.S. Coast Guard, vessel owners and maritime labor. We urge EPA Administrator-designate Zeldin to make reversing the Biden Administration’s waiver for the harbor craft rule a top priority upon being sworn in.