The members of the California Fuel Cell Partnership prepared the Medium-Duty and Heavy-Duty Fuel Cell Vehicle Action Plan for California to accelerate the development and commercialization of medium-and heavy-duty FCEVs in California. Federal air quality targets, AB 32 GHG reduction targets, and State’s transport electrification targets, combined with the goals of the California Sustainable Freight Action Plan, make California a favorable place to launch zero-emission medium- and heavy-duty transportation technologies.