Iowa Code § 7.15
The governor, in addition to other duties and responsibilities conferred by the Constitution and laws of this state, is hereby empowered to contract for the benefits available to this state under any Act of Congress for highway safety, law enforcement, or other related programs, and in so doing, to cooperate with federal and state agencies, private and public organizations, and with individuals, to effectuate the purposes of these enactments. The governor shall be responsible for and is hereby empowered to administer, either through the governor's office or through one or more state departments or agencies designated by the governor or any combination of the foregoing the highway safety, law enforcement and related programs of this state and those of its political subdivisions, all in accordance with said Acts and the Constitution of the State of Iowa, in implementation thereof.
Iowa Code § 7.15
Department of public safety designated as state highway safety agency to receive federal funds; Executive Order No. 23, June 9, 1986