The board shall [by rule establish] advise the secretary of state on standards and procedures [and regulations] for the effective and efficient management of municipal records. Such standards and procedures [and regulations] shall govern the retention, preservation and disposition of municipal records. [The statutory standards for retention, preservation and disposition of municipal records in effect at the time of passage of this section shall remain effective until superseded by rules promulgated by the board.] The board shall oversee the local government records management improvement program as provided in RSA 5:47-5:51.