Md. Code, Public Utilities § 10–210

(a) (1) A taxicab permit holder shall post in each of its taxicabs a schedule of its fares on a rate card.

(2) The rate card shall be printed and arranged in a way that allows a passenger to determine readily the exact fare payable by the passenger.

(3) A person may not collect a fare other than a fare appearing on or determinable from the rate card posted in the taxicab.

(b) (1) This subsection does not apply to a taxicab operating in the City of Hagerstown.

(2) Except as provided in subsection (c) of this section, while in service, each taxicab for which a permit is required shall be equipped with:

(i) an accurate taximeter that is properly installed and connected; or

(ii) another device the Commission approves for measuring the charges for service.

(c) (1) A fixed charge may be made for any trip by taxicab between:

(i) a point within the political subdivision in which the taxicab is normally operated and a point outside of the political subdivision;

(ii) the Maryland Port Administration’s cruise terminal facilities and:

1. Fort McHenry;

2. the World Trade Center Institute in Baltimore; or

3. Penn Station in Baltimore; or

(iii) points within Baltimore City, as approved by the Commission.

(2) A fixed charge shall be calculated on a mileage basis that the Commission approves.