Md. Code, Financial Institutions § 6–808

(a) An out-of-state credit union shall provide the Commissioner, within 15 days of opening a branch in the State, with a notice of the opening of the branch.

(b) A credit union chartered and primarily regulated by another state that proposes to establish a branch in this State shall qualify under § 7-203 of the Corporations and Associations Article to do business in the State as a foreign corporation.

(c) An out-of-state credit union that has a branch in this State may establish additional branches in this State:

(1) To the same extent as a credit union; or

(2) To the extent otherwise permitted by federal law.