Oregon Revised Statutes Public Borrowing § 287A.180

(a) In anticipation of tax revenues or other moneys;

(b) To provide interim financing for capital projects to be undertaken by the public body; or

(c) To refund revenue bonds issued pursuant to this section.

(a) Pledge all or part of the revenues of the public body that may lawfully be used to secure payment of the revenue bonds.

(b) Obtain credit enhancement devices for the revenue bonds authorized by this section.

(c) Establish debt service reserves.

(d) Enter into covenants, by ordinance, resolution or agreement, for the protection and security of the owners of revenue bonds authorized by this section. The covenants constitute enforceable contracts with the owners of the revenue bonds.

(a) Must mature within 13 months after they are issued; and

(b) May not be issued in a principal amount that exceeds 80 percent of the taxes or other revenues, except grant moneys, that the public body has budgeted or otherwise reasonably expects to have available to pay the revenue bonds.