Or. Rev. Stat. § 286A.580
(3) In addition to lottery bonds for any lottery bond program, the State Treasurer may, at the request of the affected agency or the Oregon Department of Administrative Services, issue one or more series of refunding lottery bonds. The refunding lottery bonds shall be structured so that the amount required to pay those bonds in each year does not exceed the amount of unobligated net lottery proceeds that could have been committed to pay the lottery bonds that are refunded. Refunding lottery bonds shall be issued in such amount as the State Treasurer determines is necessary or appropriate in order to:
(4) All lottery bonds issued under this section shall be payable from:
(8) Any covenants made under this section for the benefit of owners of lottery bonds shall constitute contracts between the State of Oregon and the owners of lottery bonds. The State Treasurer, or the Director of the Oregon Department of Administrative Services with the consent of the State Treasurer, may, on behalf of the State of Oregon and in addition to the covenants authorized by subsection (6) of this section, make the following covenants for the benefit of the owners of lottery bonds and any providers of credit enhancement or instruments authorized by subsection (6) of this section:
(b) Subject only to the availability of unobligated net lottery proceeds, the State of Oregon shall budget and appropriate in each fiscal year an amount of unobligated net lottery proceeds that, when added to other funds lawfully budgeted and appropriated and available for the purpose, will be sufficient:
[Formerly 286.580]