N.J. Stat. Ann. § 26:9-12

The director may, if in his judgment public interests will be served, set aside out of the moneys appropriated for such purposes such an amount as may be necessary to abate the mosquito breeding areas found in any municipality. In such case, payment shall be made to the contractor upon a statement by the person in charge of the work, attested by the director, showing the amount due and that the work has been completed in accordance with the specifications of the contract.