Whenever the director, president or chairperson, as the case may be, of the board of chosen freeholders in any county is specified as a member of any county board, such as the county planning board or county welfare board, he may designate another member of the board of chosen freeholders to serve in his place. The term of the designated member of the board shall expire with his term as freeholder, with the term, as presiding member, of the director, president or chairperson, as the case may be, of the board of chosen freeholders appointing him or with the term specified by law for the position filled pursuant to this act, whichever occurs first.
N.J.S. § 40:20-71.1