Maryland Statutes
Title 5.5 - Railroad Safety and Health
Section 5.5-105 - Track Clearance Certificates

For any construction within 8 feet 6 inches laterally from the center line of a railroad track or within 22 feet above the top of the rail, the application for a building permit must be accompanied by a clearance certificate from the Commissioner to show that the proposed construction complies with requirements relating to distance from and height over a railroad track.