13. A 9-1-1 emergency centre must(1) have a recording and conservation system of emergency calls in speaking mode and calling cards pertaining to them and keep the recordings and calling cards for at least 38 months after the date on which those calls were received;
(2) set up a procedure to ensure the quality of services rendered to the population and to the responders who were called, which provides for the verification of calling cards and the listening of recordings; and
(3) ensure the integrity of the chain of custody of the recordings and calling cards.