N.H. Rev. Stat. § 21-P:59
The governor in addition to other duties and responsibilities conferred upon him or her by the constitution and laws of this state is hereby empowered to contract and to do all other things necessary in behalf of this state to secure the full benefits available to this state under the federal Highway Safety Act of 1966 and all acts amendatory and supplemental thereto, and in so doing, to cooperate with federal and state agencies, agencies private and public, interested organizations, and individuals, to effectuate the purposes of that enactment, and any and all subsequent amendments thereto. The governor shall coordinate the activities of any and all departments and agencies of this state and its subdivisions, relating thereto.
RSA 21-P:59
2015, 276:159, eff. July 1, 2015.