Md. Rule 6-109
Rule 6-109. Other Jurisdictions—Laws of Domestic Partnership
(a) Generally. A relationship established under the laws of domestic partnership of another jurisdiction shall be recognized as a registered domestic partnership in this State if the laws establishing the relationship are substantially similar to the requirements of Code, Estates and Trusts Article, § 2-214.
(b) Certified List. With the advice and assistance of the Attorney General, the registers of wills shall establish, update, and maintain a statewide certified list of jurisdictions with laws of domestic partnership that are substantially similar to the requirements of Code, Estates and Trusts Article, § 2-214.
Cross reference: See Code, Estates and Trusts Article, § 2-214(h) for the requirements for recognition in Maryland of a relationship other than marriage established under the laws of another jurisdiction.