(A) It shall be unlawful for any person to commence, establish, maintain or carry on any business enterprise, whatever, in the city:
(1) Without first obtaining a license from the city, whether the business enterprise or the person is subject to a city license tax under this chapter or not, and;
(2) Without fully complying with any and all other regulations of such business contained in this chapter, or other regulatory provisions now existing or hereafter to be adopted by the city.
(B) This section shall not be construed to require any person to obtain a license prior to doing business within the city if such requirement conflicts with applicable statutes of the United States or the state. Persons not so required to obtain a license prior to doing business within the city nevertheless shall be liable for payment of the tax imposed by this chapter.
(`67 Code, § 6-1-4)