(1) The bonds shall be authorized by resolution of the county commissioners or by ordinance of the municipality; shall be subject to such maximum net effective interest rate; and shall be in such denominations, bear such date, mature at such time not exceeding forty years from their respective dates, bear such interest at a rate, be in such form, carry such registration privileges, be executed in such manner, be payable at such place within or without the state, and be subject to such terms of redemption as the authorizing resolution or supplemental resolution of the county commissioners or the ordinance or supplemental resolution of the municipality may provide.

(2) The bonds may be sold in one or more series at par, or below or above par, at public or private sale, in such manner and for such price as the county or municipality, in its discretion, shall determine; but the county or municipality shall not sell such bonds at a price such that the net effective interest rate of the issue of bonds exceeds the maximum net effective interest rate authorized. As an incidental expense of the project, the county or municipality, in its discretion, may employ financial and legal consultants in regard to the financing of the project.

(3) The county or municipality may exchange all or a part of its bonds for all or an equivalent part of the project for which the bonds are issued, the exchange to be preceded by determination of the fair value of the project or part of the project exchanged for the bonds. Such determination shall be by ordinance of the municipality or by resolution of the governing body of the county and shall be conclusive.

(4) The bonds shall be fully negotiable under the terms of article 8 of title 4, C.R.S.

(5) Interest on bonds issued on or after July 1, 1979, pursuant to this article shall be exempt from Colorado income tax.