Oregon Revised Statutes Aviation § 838.065

(1) For the purpose of performing any service that the district has power to perform, the district, when authorized at any properly called election held for such purpose, shall have the power to borrow money by the issuance and sale of general obligation bonds. Such bonds shall never exceed in the aggregate 10 percent of the real market value of all taxable property within the district computed in accordance with ORS 308.207. The bonds shall be so conditioned that the district shall promise and agree therein to pay the bearer at a place named therein payable semiannually in accordance with the tenor and terms of the interest coupons attached. The bonds shall mature serially not to exceed 30 years from the date of issue.

(2) For the purpose of performing any of the powers conferred by this chapter a district, without the necessity of an election held for such purpose, shall have the power to borrow money by the issuance and sale also of revenue bonds and to pledge as security therefor, all or any part of the unobligated net income or revenue of the district. The revenue bonds shall be payable both as to principal and interest from revenues only. The revenue bonds shall not be subject to the percentage limitation applicable to general obligation bonds and shall not be a lien on any of the taxable property within the limits of the district and shall be payable solely from such part of revenues of the district as remains after the payment of obligations having a priority and of all expenses of operation and maintenance of the district. All revenue bonds shall contain a provision that both the principal and interest are payable solely from the operating revenues of the district remaining after paying such obligations and expenses.

(3) All general obligation bonds and revenue bonds shall be issued as prescribed in ORS chapter 287A.