N.H. Rev. Stat. § 9:14-a

The governor is hereby authorized to draw his warrant with the advice and consent of the council, upon any money in the general fund of the treasury, including special and capital funds, for departments other than transportation or fish and game, for such sums to be set apart from time to time to the credit of the state treasurer as a working capital fund as may appear to the governor and council necessary and proper upon recommendation of the commissioner of administrative services for payment of all proper charges against said departments other than transportation and fish and game. The governor is likewise (for working capital) hereby authorized to draw his warrant, with the advice and consent of the council, upon any money in the highway fund for expenditures for the department of transportation, or upon any money in the fish and game fund for expenditures for the fish and game department. The provisions of this section shall not authorize the manifesting, approval or payment of any claim in excess of appropriations or for the purposes for which appropriations do not exist. A warrant duly executed under the provisions hereof shall be a sufficient warrant under RSA 6:10.