(a) Every license shall show upon its face, in addition to the requirements made by the rules and regulations of the City Forester, the types, classifications or kinds of service constituting all or any part of such business in which the licensee therein named is thereby licensed and authorized to render and perform.

(b) The issuance of a license under this article shall entitle and authorize the licensee therein named to engage in only such types, classifications or kinds of service constituting all or any part of such business as shall be designated or shown upon the face of such license and it shall be unlawful and grounds for revocation of such license for the licensee to engage in any other or different type, classification or kind of service constituting all or any part of such business. (Code 1981 § 45-95. Code 1995 § 150-141.)