Maryland Statutes
Part VIII - Railroad Crossings
Section 8-644 - Exempt Highway-Rail Grade Crossing Plaque

(a)    The Administration may erect an exempt highway–rail grade crossing plaque at each railroad grade crossing in the State that is no longer in use by a railroad.
    (b)    The design and placement of a plaque erected under this section shall be in accordance with the federal Manual on Uniform Traffic Control Devices.