Maryland Code, LOCAL GOVERNMENT 20-608

User fees: Fees charged to users of goods or services provided by the government. In levying or authorizing these fees, the legislature determines whether the revenue should go into the treasury or should be available to the agency providing the goods or services.

(a) By ordinance, a municipality may impose a user fee on charges for the docking and storage of boats.

(b) (1) Subject to paragraph (2) of this subsection, a municipality shall set the rate of the user fee.

(2) The rate of the user fee may not exceed 5% of the rental charges for the docking and storage of boats.

(d) A municipality shall use any revenue from the user fee authorized under this section:

(1) to maintain and enhance:

(i) water quality;

(ii) water and wastewater treatment facilities;

(iii) marinas;

(iv) law enforcement;

(v) public safety; or

(vi) fire services; or

(2) for land acquisition and the related construction and maintenance of public facilities to enhance public use and water access.