The county board of taxation shall not revise, correct or equalize the assessed value of property in a municipality to which the provisions of sections sixty-nine to ninety-one, inclusive, of this act, apply, nor shall the county board hear or determine an appeal concerning an assessment in such a municipality, without first giving at least five days' notice in writing to the director so that the board or its representative may be heard as a party in interest in behalf of the State.
N.J.S. § 52:27BB-79