Md. Code, Transportation § 12–412

(a) Each agreement, arrangement, and declaration made under this subtitle and each amendment to an agreement, arrangement, or declaration:

(1) Shall be in writing and kept on file by the Administration; and

(2) Is not effective until approved by the Governor.

(b) The Administrator shall file a copy of each agreement, arrangement, declaration, and amendment with the Secretary of State within 30 days after its execution or its effective date, whichever is later. The Administration shall provide copies of these documents for public distribution on request.