Md. Code, Business Occupations and Professions § 8–403

(a) Before a certified interior designer issues to a client or submits to a public authority any interior design document, including drawings, plans, schedules, reports, or specifications, the certified interior designer who prepared or approved the document shall sign, seal, and date the document.

(b) Any interior design document issued or submitted as described in subsection (a) of this section shall be identified as the interior design document.