Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 547.665

(1) The bonds shall be numbered consecutively, beginning with number 1 and following in numerical order. They shall mature in the manner provided by ORS 547.660, in annual amounts of principal and interest approximately equal, in not less than five nor more than 40 years from the date of issue, as the board of supervisors may determine. They shall be negotiable in form. The bonds shall bear interest at a rate determined by the board, payable annually or semiannually on dates determined by the board. Payment of principal and interest shall be at the place designated in the bonds and coupons. The bonds, except as otherwise provided in ORS 547.655 to 547.695, shall be each of the denomination of not less than $100 nor more than $1,000, shall be signed by the president and secretary, and the seal of the board of supervisors shall be affixed thereto.

(2) Each bond shall bear on its back the registration certificate of the treasurer of the district. Coupons for interest or for interest and principal, as the case may be, shall be attached to each bond and shall bear the facsimile signature of the secretary of the district. The district treasurer shall register the bonds in a book kept in the office of the treasurer for that purpose, in which shall be stated the number, date of issue and of sale, amount of the bond, time and place of payment, rate of interest, number of coupons attached, and any other description proper for future identification of each bond. However, the board of supervisors may call for payment and retire before maturity any bonds issued in accordance with ORS 547.655 to 547.695, on payment of the principal remaining unpaid at the date of call, together with earned interest to and including the date of the call for payment.

(3) The board of supervisors may stipulate that during the first period of the bond term, not exceeding five years, there shall be no payment of principal or interest.