Wis. Stat. § 440.9715: Applicability.

A registration is not required under this subchapter for any of the following:

(1) An individual who conducts a home inspection while lawfully practicing within the scope of a license, permit or certificate granted to that individual by a state governmental agency.

(2) An individual who constructs, repairs or maintains improvements to residential real property, if the individual conducts home inspections only as part of his or her business of constructing, repairing or maintaining improvements to real property and if the individual does not describe himself or herself as a registered home inspector or convey the impression that he or she is a registered home inspector.

(3) An individual who conducts home inspections in the normal course of his or her employment as an employee of a federal, state or local governmental agency.