Maryland Code, State Government § 11-104

(a) A provision of this title that conflicts with a federal requirement for the grant of federal funds to a local government, to the State, or to a State unit is inoperative to the extent of the conflict and with respect to a unit that the conflict directly affects.

(b) To the extent necessary to comply with a conflicting federal requirement, a local government or State unit may modify a notice, timing, hearing, or related procedural requirement of this title.

(c) To the extent necessary to comply with a federal requirement, if a development permit is issued jointly by a State unit and the federal government, the State unit may modify a notice, timing, hearing, or related procedural requirement of this title.