Medium- and heavy-duty zero-emission vehicles (MHD ZEVs) represent a critical lever for decarbonizing Canada’s transportation sector. While progress is underway, a range of systemic barriers continue to delay widescale adoption by commercial fleets. These barriers span from upfront costs and infrastructure deployment challenges to market risks and workforce readiness. Through a multi-stakeholder prioritization process, the following key government recommendations have emerged as the most impactful and urgent to enable a smoother and faster transition to zero-emission fleets.