(a) Record retention program; records retention schedule. The Mayor shall prepare a schedule of records specifying the records to be:
(1) Retained permanently;
(2) Destroyed;
(3) Disposed of routinely in the regular course of public business.
(b) The records retention schedule shall list with sufficient detail for identification records without legal or administrative value or historical interest to be destroyed, and periodically disposed of by the city. Records to be destroyed shall be certified by the City Clerk as having no legal or administrative value or historical interest.