N.H. Rev. Stat. § 21-I:6

There is hereby established within the office of the commissioner of administrative services a state budget office under the supervision of an unclassified budget officer who shall: I. Conduct a continuous study of the financial operation, needs and resources of the state and compile all information necessary for the preparation of the budget so that each successive budget cycle shall have ready access to all information contained in prior budgets. II. Establish the procedures which all state agencies shall follow in submitting budget requests to the governor and assist the governor or his designee to compile a tentative budget and budget document, as provided in RSA 9. The procedures established under this paragraph shall not be considered rules subject to RSA 541-A. III. [Repealed.] IV. Cooperate with the department of transportation in long range capital planning to meet the needs of the state as may be requested by the governor and council, and subject to their approval. V. Provide information and reports to the governor or his designee, as the governor shall request, in order to effectively administer the budget. VI. Consult with the respective executive heads of state departments, agencies, boards and commissions, relative to the establishment, supervision and maintenance of uniform and effective business records, business practices, and business management, and provide the necessary direction to insure that all manual of procedure requirements are complied with. VII. Serve as budget analyst for such state agencies as the commissioner may assign. VIII. Cooperate with the department of information technology management in the preparation of the statewide information technology plan, and incorporation of information technology planning into the budget process.