There shall be at least one person certified as a manufactured housing installer present at the installation of any manufactured home in Iowa. The installation of a manufactured home shall be under the direct supervision of a certified manufactured housing installer, who shall be present at all times at the installation site while any installation work is proceeding.
Exception: Installation of a manufactured home may be completed by the owner of the home, if the home is the primary residence of the person completing the work, whether or not the person is certified as a manufactured housing installer, provided that the work is inspected as required and that a state-certified installer certifies compliance with appropriate provisions of this chapter, 661-Chapter 16, and 661-Chapter 322.
Iowa Admin. Code r. 661-374.2