(2) The bonds shall be in such denominations as the board may determine, and bear interest from date at a rate determined by the board, payable semiannually, to mature at intervals to be determined by the board, both principal and interest being payable at some convenient insured institution or trust company, as those terms are defined in ORS 706.008, that is named in the bonds. The bonds shall be signed by the president of the corporation and attested with the seal of the corporation and the signature of the secretary. They may be issued so as to mature serially in annual amounts so as to be approximately equal, principal and interest, and may be issued so as to include a sum sufficient to pay the first four years’ interest, or less, to accrue on the bonds, and be numbered serially in the order in which they mature. Each such bond shall have interest coupons attached bearing the serial number of the bond, which coupons shall be serially numbered in the order of maturity.

(3) If the directors so determine, they may issue for the purposes stated in this section, or as provided in ORS 554.270 and 554.280, one or more amortized installment obligations of the corporation constituting a designated series of such bonds as particularly described in ORS 554.280, all of which obligations shall be evenly and ratably paid as the attached installments mature as determined by the board of directors and as described in ORS 554.280. The latter bonds and coupons shall be executed and attested as provided by subsections (1) and (2) of this section for bonds of the corporation. [Amended by 1969 c.694 §48; 1977 c.188 §10; 1981 c.94 §49; 1981 c.526 §7; 1997 c.631 §493; 2001 c.215 §31]