This Chapter is enacted solely to raise revenue for City purposes and is not intended for regulation. Nothing contained in this Chapter shall require any person engaged in or carrying on any business, trade or profession required to be licensed by the state, and being so licensed, to obtain a license from the City prior to engaging in or carrying on such business, trade or profession, nor shall any such person be subject to criminal penalty on account of failure to obtain a license under the provisions of this Chapter; provided, that all such persons, irrespective of the fact that they shall not be required to obtain a license prior to engaging in or carrying on a business, trade or profession in the City, shall nevertheless remain liable to the City for the amount of the license tax and fiscal penalties, if any, as set forth in this Chapter. Such tax shall be due upon the commencement of the engaging in or carrying on of any business, trade or profession in the City in each quarterly period, and shall be collected as set forth in Section 5.04.050. (Ord. 75-5 § 1, 1975; prior code § 12-1.)