A borough planning commission, to be composed of five members,
appointed as provided by law (53 P.S. § 10202), is hereby
created in and for the Borough of Trainer. The Planning Commission
shall perform all duties and may exercise all powers conferred by
law upon borough planning agencies, provided the Planning Commission
previously created in and for the said Borough shall constitute 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 borough planning commissions
in effect at the time of the happening of the said vacancy.