California Labor Code
(a) An operator of an amusement ride shall report or cause to be reported to the division immediately by telephone each known incident where the maintenance, operation, or use of the amusement ride results in any of the following:
(2) A loss of consciousness or other injury to a person which requires medical service other than ordinary first aid treatment.
(3) Major mechanical failure. For purposes of this section, “major mechanical failure” means the stoppage of operation resulting from or in a structural failure, a mechanical or electrical failure of a drive or control system component, or a failure of a restraint system that significantly compromises ride safety. “Major mechanical failure” does not include a foreseeable malfunction that activates a safety system.
(4) A patron falling from a moving ride or from a ride that has temporarily stopped in an elevated position.
(b) If a fatality, reportable injury, or major mechanical failure, as defined in subdivision (a),is caused by the failure, malfunction, or operation of an amusement ride, the equipment or conditions that caused the accident shall be preserved for the purpose of investigation by the division.
(c) In addition to the report by telephone required under subdivision (a), an operator of an amusement ride shall submit a written accident report to the division within 24 hours of an incident on a form designated by the division.
(d) A division inspector may inspect an amusement ride upon receipt of the report of an incident.
(e)Whenever a state, county, or local fire or police agency is called to an accident involving an amusement ride covered by this part in which a serious injury or illness, or death occurs, the nearest office of the division shall be notified by telephone immediately by the responding agency.