No person may engage in the business of installing water well pumps and pitless units in the state after July 1, 1986, unless a certified installer, who is responsible for the proper installation of the pump and pitless unit, is in charge of the installation. This chapter does not prohibit any person from installing water well pumps and pitless units on that person's own premises for that person's own use.
N.D.C.C. § 43-35-18.1