The Department of Consumer Protection shall issue a separate license to persons qualified to engage in work as contractors and as journeymen. Any person licensed under this chapter shall be permitted to perform the work or occupation covered by such license in any town or municipality of this state without further examination or licensing by any town or municipality.
Conn. Gen. Stat. § 20-338
(February, 1965, P.A. 493, S. 12; 1967, P.A. 789, S. 10; P.A. 81-361, S. 27, 39; June 30 Sp. Sess. P.A. 03-6, S. 146 (d); P.A. 04-169, S. 17; 04-189, S. 1.)
If plaintiff is properly licensed by state, defendant city must grant him a work permit to do plumbing within its limits. 26 Conn.Supp. 329.