In order to provide information to the public that is useful to the preservation and protection of historic districts and sites and to provide the basis for consistency of policy, the administrative officer on behalf of the Commission shall maintain complete files and records. The Commission's files shall include, but are not limited to, data used in the classification of buildings, places and structures, minutes of Commission meetings, applications for certificates of appropriateness along with collateral data, decisions and appeals associated therewith and information, materials and references submitted to the public related to historic preservation.