It shall be unlawful for any person to engage in or prosecute within the city any business, trade, occupation, profession, calling, vocation or activity for which the payment of any city license tax or fee is required or for which a city license certificate is required without having paid to the city such license tax or fee or without holding an appropriate, currently valid city license certificate, as provided by this chapter; and the fulfillment of all terms and conditions of such license certificate and the provisions of this chapter relating thereto shall be conditions precedent to engaging in or prosecuting within the city and such business, trade, occupation, profession, calling, vocation or activity.
(1991 Code, § 6-1) (Ord. passed 6-20-1957) Penalty, see § 110.999