Fla. Stat. § 243.37
The state does hereby pledge to and agree with the holders of any obligations issued under this part, and with those parties who may enter into contracts with an authority pursuant to the provisions of this part, that the state will not limit or alter the rights hereby vested in the authority until such obligations, together with the interest thereon, are fully met and discharged and such contracts are fully performed on the part of the authority, provided nothing herein contained shall preclude such limitation or alteration if and when adequate provision shall be made by law for the protection of the holders of such obligations of an authority or those entering into such contracts with an authority. An authority is authorized to include this pledge and undertaking for the state in such obligations or contracts.
Fla. Stat. § 243.37