The San Bernardino County Transportation Authority (SBCTA) introduced North America's first self-powered, zero-emission passenger train, called a Zero Emission Multiple Unit (ZEMU), powered by a hydrogen fuel cell. The ZEMU is set to operate between San Bernardino and Redlands as part of the Metrolink commuter rail system, covering approximately 22 miles. Manufactured by Stadler, the ZEMU is part of the Fast Light Intercity and Regional Train (FLIRT) H2 model, designed to replace diesel trains on non-electrified or partially electrified lines. With 116 seats, a maximum range of 286 miles, and the ability to be refueled in under 30 minutes, the ZEMU promises efficient and sustainable travel. After a journey from Switzerland to the U.S., the ZEMU underwent safety testing in Colorado and was showcased at a transportation expo in Florida. SBCTA President Ray Marquez emphasizes the significance of ZEMU's arrival in San Bernardino, highlighting years of planning for a greener rail system. The ZEMU's unique design and innovative hydrogen-powered propulsion system mark a step towards environmentally friendly transportation solutions. As final testing commences, the ZEMU is poised to start operations on the Arrow line, showcasing a commitment to sustainable transit in the region.