Mich. Comp. Laws § 339.2211: Using or advertising certain titles or descriptions.

Sec. 2211.

A person shall not use or advertise the title "landscape architect" or any title or description tending to convey the impression that he or she is a landscape architect unless he or she is licensed under this article. This article does not restrict the use of the titles "landscape gardener", "landscape contractor", "landscape designer", or "landscape operator".