Md. Code, Business Regulation § 6–413

The Secretary of State may exempt from the requirement of a registration statement or annual report a charitable organization that:

(1) is organized under the laws of another state that has a statute substantially similar to this title;

(2) has been exempted from the submission of a registration statement by that other state;

(3) has its principal place of business outside this State; and

(4) gets its money principally from sources outside this State.