Maryland Code, General Provisions § 7-202

(a) The State flag is divided into quarters.

(b) The first and fourth quarters are a paly of six pieces, or (gold) and sable (black), and a bend dexter (right diagonal band) counterchanged, so that they consist of six alternating gold and black vertical bars with a diagonal band on which the colors are reversed.

(c) The second and third quarters are quartered argent (white) and gules (red), a cross bottony counterchanged, so that they consist of a quartered field of white and red, charged with a Greek cross that has arms terminating in trefoils and opposite coloring so that red is on the white quarters and white is on the red quarters, as represented on the escutcheon of the State seal.