The director of the department of administrative services shall draw warrants on the treasurer of state for all disbursements authorized by the provisions of this chapter and chapter 459, upon itemized and verified vouchers bearing the approval of the director of the department of natural resources.
Iowa Code § 455B.107
86 Acts, ch 1245, §1899; 2003 Acts, ch 145, § 286; 2004 Acts, ch 1101, §62