; (10) focus on interoperability development and testing; (11) focus on fleets, including medium and heavy-duty vehicles, which through transitioning to electric can have a significant impact on reducing fuel consumption and CO2 emissions; and (12) help improve the life of the vehicle’s battery. (b) Wage rate requirement The Secretary shall require that each recipient of a grant under the Program provides reasonable assurances that all laborers and mechanics employed to carry out the projects for which the assistance is provided, including laborers and mechanics employed by contractors or subcontractors, will be paid wages at rates not less than those for similar work in the locality as determined by the Secretary of Labor in accordance with subchapter IV of chapter 31 of title 40, United States Code (commonly referred to as the Davis-Bacon Act ). (c) Neutrality toward organized labor The recipient of grants under the Program shall have, and ensure that all employed by contractors and subcontractors of the covered entity with respect to the covered activities have— (1) an explicit policy of neutrality with regard to— (A) labor organizing for the employees engaged in the covered activities; and (B) such employees’ choice to form and join labor organizations; and (2) policies that require— (A) the posting and maintenance of notices in the workplace to such employees of their rights under the National Labor Relations Act ( 29 U.S.C. 151 et seq. )