The Zero Emission Transit Fund (ZETF) is a federal program providing funding to help transit agencies purchase zero-emission buses and build supporting infrastructure like charging stations and maintenance facilities. The fund supports Canada's commitment to transit electrification and emissions reduction. Zero-emission buses include battery-electric and hydrogen fuel cell vehicles that produce no tailpipe emissions. Transitioning transit fleets requires significant capital investment beyond vehicle purchases—charging infrastructure, electrical upgrades, and maintenance facility modifications add substantial costs. The ZETF helps municipalities overcome these barriers to fleet electrification. Transit electrification contributes to municipal climate goals while potentially reducing operating costs (electricity typically costs less than diesel). The fund represents federal investment in greener municipal transportation infrastructure.