New Jersey Statutes Title 40. Municipalities and Counties 40 § 69A-87

The mayor shall preside at all meetings of the municipal council and shall have a voice and vote in its proceedings. He shall fill vacancies occurring in the trustees of the public library and in the board of education where the municipality is operating under chapter 6 of Title 18 of the Revised Statutes  1 for such terms of office as are provided by law. All bonds, notes, contracts and written obligations of the municipality shall be executed on its behalf by the mayor or, in the event of his inability to act, by such councilman as the municipal council shall designate to act as mayor during his absence or disability. The powers and duties of the mayor shall be only such as are expressly conferred upon him by this article.