There is hereby established pursuant to p .L. 1975, c. 291, in the Borough of Brooklawn a Planning Board of nine members consisting of the following four classes:
A.
Class I: the Mayor .
B.
Class II: one of the officials of the municipality, other than a member of the governing body, to be appointed by the Mayor; provided that if there is an Environmental Commission, the member of the Environmental Commission who is also a member of the Planning Board as required by N.J.S.A. 40:56A-1 shall be deemed to be the Class II Planning Board member if there is both a member of the Zoning Board of Adjustment and a member of the Board of Education among the Class IV members.
C.
Class III: a member of the governing body to be appointed by it.
D.
Class IV: six other citizens of the municipality, to be appointed by the Mayor. The members of Class IV shall hold no other municipal office, except that one member may be a member of the Zoning Board of Adjustment and one 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 N.J.S.A 40:56A-1 shall be a Class IV Planning Board member unless there be among the Class IV members of the Planning Board both a member of the Zoning Board of Adjustment and a member of the Board of Education, in which case the member of the Environmental Commission shall be deemed to be the Class II member of the Planning Board.