Vt. Stat. Ann. tit. 10, § 636

The State does hereby pledge to and agree with the holders of the notes and bonds issued under this chapter that the State will not limit or restrict the rights hereby vested in the Agency to perform its obligations and to fulfill the terms of any agreement made with the holders of its bonds or notes or in any way impair the rights and remedies of the holders until the notes and bonds, together with interest thereon, and interest on any unpaid installments of interest, are fully met, paid and discharged. The Agency is authorized to execute this pledge and agreement of the State in any agreement with the holders of the notes or bonds.