Each license issued under this chapter must be renewed annually by a date set by the director.
When a valid application for license renewal has been properly filed and the existing license has not been suspended, revoked, or denied by the department, the existing license continues in effect for not more than 180 days until the department acts on the renewal. (Mont. Co. Code 1965, § 82-15; 1978 L.M.C., ch. 18, § 2; 1989 L.M.C., ch. 1, § 3.)