N.H. Rev. Stat. Ann. § 228-A:3
I. Any bonds issued under this chapter may be secured by a resolution or by a trust or security agreement between the state and a corporate trustee or by a trust or security agreement directly between the state and the purchasers of the bonds. Any corporate trustee that is a party to such resolution or trust or security agreement may be any trust company or bank having the powers of a trust company within or without the state. Any such resolution or trust or security agreement shall be in such form and executed in such manner as may be determined by the treasurer, with the approval of the governor and council. Such trust or security agreement or resolution may pledge or assign, in whole or in part, the revenues, as defined in RSA 228-A:1, held or to be received by the state and any contract or other rights to receive the same, whether then existing or thereafter coming into existence and whether then held or thereafter acquired by the state, and any proceeds thereof. Such trust or security agreement or resolution may contain such provisions for protecting and enforcing the rights, security, and remedies of the bondholders as may, in the discretion of the treasurer, be reasonable and proper and not in violation of law. Without limiting the generality of the foregoing, such agreement or resolution may include:
(b) Covenants setting forth the duties of, and limitations on, the state in relation to:
Source. 2005, 58:1, eff. July 1, 2005.