ORS § 268.600
For the purpose of carrying into effect all or any of the powers granted to metropolitan service districts, a district may from time to time issue and sell revenue bonds without the necessity of the electors of a district authorizing the bonds. Proceeds from the sale of such bonds may be used to cover the costs incurred in issuing such bonds, and preliminary work incident to carrying out such purposes and powers, including but not limited to planning, engineering, inspection, accounting, fiscal, legal and trustee expenses, the costs of issuance of bonds, engraving, printing, advertising and other similar expenses, and to pay interest on the outstanding bonds issued for any project during the period of actual construction and for such period thereafter as a district may determine, and to establish, maintain or increase any reserves for debt service on the bonds. Such revenue bonds shall not in any manner or to any extent be a general obligation of a district nor a charge upon any other revenues or property of a district not specifically pledged thereto. A district may issue revenue bonds pursuant to ORS 268.600 to 268.660 for the purpose of financing landfills, transfer facilities, resource recovery facilities and other improvements, facilities and equipment necessary or desirable for the solid and liquid waste disposal system of the district regardless of whether such improvements, facilities or equipment are to be owned by the district or any other public or private agency or person and regardless of whether such improvements, facilities or equipment are to be located within or without the district. In connection with the issuance of revenue bonds to finance any such improvements, facilities or equipment which are to be owned by any other public or private agency or person, the district shall enter into a lease-purchase, installment sale or loan agreement with such public or private agency or person providing for lease-purchase, installment sale or loan payments which, together with other revenues pledged for the payment of such revenue bonds as provided in ORS 268.610, shall be sufficient to pay when due the principal of, premium, if any, and interest on such revenue bonds.
ORS 268.600