Oregon Revised Statutes Public Organizations for Community Service § 268.520

(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, the principal sum with interest at a rate 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) All general obligation bonds shall be issued as prescribed in ORS chapter 287A.