A Planning Commission, to be composed of five members, appointed as provided by law, is hereby established in and for the Township of Lawrence Park.  The said Planning Commission shall perform all duties and may exercise all the powers conferred by law upon municipal planning agencies.  The Planning Commission previously established in and for the said Township shall constitute the Planning Commission hereby established, and nothing herein shall affect the tenure of any of the members thereof, but any and all vacancies in the said Commission, hereafter occurring, shall be filled in the manner and for the term provided in the law governing municipal planning commissions in effect at the time of the happening of such vacancy.