The commissioner shall have authority to enter into agreements with landowners for the conservation of wetlands. These agreements shall be entered into for a period of five or ten years, with provision for renewal for additional five-year or ten-year periods. The commissioner shall re-examine the payment rates at the beginning of the fifth year of any ten-year initial or renewal period and before the beginning of any renewal period and, providing that funds are available, make needed adjustments in rates for any initial or renewal period.
N.D.C.C. § 61-31-03