Class I. The Mayor or the Mayor's designee in the absence of the Mayor.

Class II. One of the officials of the municipality other than a member of the Township Committee 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 are both a member of the Board of Adjustment and a member of the Board of Education among the Class IV members.

Class III. A member of the Township Committee to be appointed by it.

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, position or employment, except that in the case of nine-member boards, one such member may be a member of the Zoning Board of Adjustment or Historic Preservation Commission. No member of the Board of Education may be a Class IV member of the Planning Board, except that in the case of a nine-member board, one Class IV member may be a member of the Board of Education. If there be a municipal Environmental Commission, the member of the Environmental Commission who is also a member of the planning board, as required by Section 1 of P.L. 1968, c. 245 (C.40:56A-1), shall be a Class IV Planning Board member, unless there be among the Class IV or alternate members of the Planning Board both a member of the Zoning Board of Adjustment or Historic Preservation Commission and a member of the Board of Education, in which case the member common to the Planning Board and Municipal Environmental Commission shall be deemed a Class II member of the Planning Board. For the purpose of this section, membership on a municipal board or commission whose function is advisory in nature, and the establishment of which is discretionary and not required by statute, shall not be considered the holding of municipal office.