Md. Code, Criminal Procedure § 10–247

(a) This Compact shall bind each party state until renounced by the party state.

(b) Any renunciation of this Compact by a party state shall:

(1) be effected in the same manner by which the party state ratified this Compact; and

(2) become effective 180 days after written notice of renunciation is provided by the party state to each other party state and to the federal government.