Colorado Revised Statutes Title 12. Professions and Occupations § 12-155-121. Municipal and county regulations

(1) Any city, town, county, or city and county of this state may provide for the licensing of plumbing contractors or water conditioning contractors. Contractors who obtain local licensing must also register with the board in accordance with section 12-155-108.

(2) A local government agency shall not promulgate rules or regulations or provide for licenses that would preclude the holder of a valid license or registration issued under this article 155 from practicing the holder's trade.