N.D. Cent. Code § 4.1-35-03
The commissioner shall adopt rules regulating chemigation through irrigation systems in this state to minimize the possibility of chemical, pesticide, fertilizer, or other contamination of irrigation water supply and other rules as necessary to implement this chapter. The commissioner may establish by rule standards for application of pesticides and fertilizers through irrigation systems; for installation and maintenance of all equipment and devices used for chemigation purposes; modifications or changes in design, technology, or irrigation practices; or other purposes relating to the use or placement of equipment or devices. The commissioner may adopt rules requiring periodic calibration and inspection of equipment and system operation during periods of chemigation.
N.D.C.C. § 4.1-35-03