(1) Repealed.
(2) Any person who engages in or works at or offers or attempts to engage in or work at the business, trade, or calling of a residential, journeyman, master, or apprentice plumber without an active license, permit, or registration issued under this article commits a class 2 misdemeanor and shall be punished as provided in section 18-1.3-501, C.R.S., for the first offense, and for the second or any subsequent offense, the person commits a class 6 felony and shall be punished as provided in section 18-1.3-401, C.R.S.
(3) Effective April 1, 2016, a person who engages in or works at or offers or attempts to engage in or work at the business, trade, or calling of a water conditioning contractor, water conditioning installer, or water conditioning principal without an active registration issued under this article commits a class 2 misdemeanor and shall be punished as provided in section 18-1.3-501, C.R.S., for the first offense, and for the second or any subsequent offense, the person commits a class 6 felony and shall be punished as provided in section 18-1.3-401, C.R.S.; except that nothing in this subsection (3) limits the ability of a licensed residential, journeyman, or master plumber, a plumbing apprentice, or a registered plumbing contractor to practice within his or her respective area as authorized by this article with regard to water conditioning appliances.