Mich. Comp. Laws § 339.5929: License not required for employee; application of article 8; exemption.

Sec. 929.

(1) An individual in the employ of a licensee is not required to obtain a license.

(2) A person that is licensed under article 8 in the classification of hydronic heating and cooling and process piping may install, repair, alter, and remove a residential boiler that is installed in a residence and exempt from this article under section 915 without obtaining a license.