There is hereby established a Planning Board of nine members consisting of the following four classes:
A.
Class I. The Mayor or the Mayor's designee.
B.
Class II. One of the officials of the Borough other than a member of the Council, to be appointed by the Mayor. If there is an Environmental Commission, a member of the Environmental Commission who is also a member of the Planning Board shall be the Class II Planning Board member.
C.
Class III. A member of the Borough Council to be appointed by it.
D.
Class IV. Six other citizens of the Borough to be appointed by the Mayor. The members of Class IV shall hold no other municipal office, except that one Class IV member may be a member of the Board of Education. A member of the Environmental Commission who is also a member of the Planning Board, as required by law, shall be a Class IV member.