Md. Code Ann., Fam. Law § 9.5-313
A court of this State shall accord full faith and credit to an order issued by another state and consistent with this title that enforces a child custody determination by a court of another state unless the order has been vacated, stayed, or modified by a court having jurisdiction to do so under Subtitle 2 of this title.
Added by Acts 2004, c. 502, § 2, eff. Oct. 1, 2004.