No person shall operate any business establishment within a designated Retail Business District without obtaining an annual license, to be known as the “Retail Business District License”, from the Director of Finance of Baltimore City. To the extent that any Retail Business District includes within its boundaries a public market owned by the Mayor and City Council of Baltimore, any business operated by any merchant in such market shall be included within the Retail Business District and subject to this subtitle. The operator of any exempt establishment shall not be required to obtain a Retail Business District License and shall not be eligible to use the management services provided by the Business Association for the District. City Code, 1976/83, art. 15, §113(a) Ord. 82-838