; (9) to reduce and displace petroleum use and reduce greenhouse gas emissions by accelerating the deployment of zero-emission vehicles in the United States; and (10) to increase domestic manufacturing capacity and commercialization in a manner that will establish the United States as a world leader in zero-emission vehicle technologies. (d) Deployment community selection criteria (1) In general The Secretary shall ensure, to the maximum extent practicable, that selected deployment communities serve as models of deployment for various communities across the United States. (2) Selection In selecting communities under this section, the Secretary— (A) shall ensure, to the maximum extent practicable, that— (i) the combination of selected communities is diverse in population, population density, demographics, urban and suburban composition, typical commuting patterns, climate, and type of utility (including investor-owned, publicly owned, cooperatively owned, distribution-only, and vertically integrated utilities); (ii) the combination of selected communities is diverse in geographical distribution, and at least 1 deployment community is located in each Petroleum Administration for Defense District; (iii) at least 1 deployment community selected has a population of less than 500,000; (iv) grants are of a sufficient amount such that each deployment community will achieve significant market penetration, particularly into the mainstream consumer market; and (v) the deployment communities are representative of other communities across the United States; (B) is encouraged to select a combination of deployment communities that includes multiple models or approaches for deploying zero-emission vehicles that the Secretary believes are reasonably likely to be effective, including multiple approaches to the deployment of charging infrastructure or zero-emission vehicle-refueling infrastructure