C.R.S. § 12-155-109: Unauthorized advertising - use of title.

(1) A person shall not advertise in any manner or use the title or designation of "master plumber", "journeyworker plumber", or "residential plumber" unless the person is qualified and licensed under this article 155.

(2) A person shall not advertise in any manner that the person is a water conditioning contractor, a water conditioning installer, or a water conditioning principal unless the person is registered as such pursuant to this article 155. Nothing in this subsection (2) prohibits a licensed residential, journeyworker, or master plumber, a plumbing apprentice, or a registered plumbing contractor from advertising services within the person's respective practice area as authorized by this article 155 relating to water conditioning appliances.

(3) No person shall advertise in any manner that the person is a plumbing contractor or use the title or designation of "plumbing contractor" unless the person meets the definition of plumbing contractor set out in section 12-155-103 (10).