Md. Code, Bus. Reg. § 3-404

(a) Each amusement owner who operates an amusement attraction in the State shall: (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: (i) are minor; (ii) require only first-aid treatment; and (iii) do not involve medical treatment or loss of consciousness. (b) Whenever a death or serious physical injury results from the operation of an amusement attraction: (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.