Green Spaces, Green Vehicles Act of 2019 This bill directs the Department of Energy (DOE) and appropriate agencies to collaborate on the Green Spaces, Green Vehicles Initiative to facilitate the installation and use of zero-emissions vehicle infrastructure on National Forest System lands, National Park System lands, and specified lands owned by units of local government or Indian tribes. DOE and such agencies shall facilitate such installation and use, including by acquiring zero-emissions vehicles for the fleets of the Forest Service and the National Park Service. For purposes of determining whether the acquisition of alternative-fueled vehicles is practicable for the fleet of the Forest Service or the National Park Service, DOE shall take into account the availability on National Forest System land or National Park System land, as applicable, of zero-emissions vehicle infrastructure.