To those firms, corporations, partnerships, persons, individuals, or professional people, who are practicing their professions or trades by reasons of and virtue of a license, permit, grant, or authority of the state of Utah or a state institution or department or branch of the state, only the premises use and fee portions of this title are applicable and nothing herein contained shall be construed as granting to the city any regulatory power whatsoever over professional or tradespeople licensed and regulated by the state of Utah, or any branch or department or state association. [Code 2000 § 16-1-6].