Md. Code, Land Use § 10-104

(a) In this section, “Red Line” means a transit facility, regardless of mode, operating in a combination of at–grade, elevated, or underground configurations through Baltimore City and Baltimore County along a generally east–to–west alignment between the terminus of Security Boulevard on the west and Johns Hopkins Bayview Medical Center on the east, connecting as appropriate to other fixed–route transit services. (b) Notwithstanding § 10–202 of this title, the Mayor and City Council of Baltimore City may not adopt or enforce a local law that requires the creation of new motor vehicle off–street parking for a development that includes residential use and that is located within a 0.25–mile radius of a present or planned: (1) MARC station; (2) Baltimore MTA Light Rail station; (3) Red Line station, regardless of transit mode; or (4) Metro station.