N.Y. STF Law § 136

§ 136. Contracts in pursuance of appropriations. A contract or\ncontracts made in pursuance of an appropriation by the state for a\nspecific object shall be for the completion of the work contemplated by\nthe appropriation, and in the aggregate shall not exceed the amount of\nsuch appropriation. A contract for a part of such work shall not be\nbinding upon the state until contracts are also made covering the entire\nwork contemplated by such appropriation, except that, (a) upon\ncertification by the agency having jurisdiction to the state comptroller\nthat sufficient appropriations remain for completion of the entire work\ncontemplated, preliminary work such as site preparation and\ninfrastructure work may be commenced for a project where the timeliness\nthereof is of the essence and the director of the budget certifies to\nsuch need and to the availability of appropriations, and except (b)\nwhere it is expressly provided by such appropriation that a part of the\nwork may be done by day's labor. Except as provided in section\nthirty-eight of the highway law, every such contract shall be\naccompanied by a bond for the completion of the work, specified in the\ncontract, within the amount stipulated therein, which bond shall be\nfiled in the office of the state comptroller.\n