Maryland Code, Business Regulation § 3-404

(1) keep and make available to the Commissioner records about the activities of the amusement owner under this title; and

(2) keep accurate records of, and submit periodic reports to the Commissioner on, injuries to the public that occur during use of amusement attractions other than injuries that:

(1) the person who directly controls the operation of the amusement attraction immediately shall close the amusement attraction until it has been inspected by the Commissioner;

(2) the amusement owner shall report the incident orally or in writing to the Commissioner within 24 hours; and

(3) the Commissioner shall inspect the amusement attraction within 24 hours after receiving notice of the incident.