(1) "Escrow supplement" means any funds or moneys (other than bond proceeds) of a public body, legally available for the purpose, which are placed in an escrow or trust account established under the provisions of this article to be used and expended, together with the proceeds of refunding bonds or special obligation refunding bonds, or both, to accomplish the purposes of such escrow or trust account.

(2) Repealed.

(3) "General obligation" means general obligation bonds or any other lawful general obligation of a public body constituting a debt or indebtedness of such public body.

(4) "Governing body" means a city council, board of trustees, commission, board of county commissioners, board of directors, or other legislative body of a public body in which the legislative powers of such public body are vested.

(5) (a) "Net effective interest rate" of a proposed issue of refunding bonds means the net interest cost of said refunding issue divided by the sum of the products derived by multiplying the principal amounts expressed in one thousand dollar units of such refunding issue maturing on each maturity date by ten times the number of years from the date of said proposed refunding bonds to their respective maturities.

(b) "Net effective interest rate" of outstanding obligations to be refunded means the net interest cost of said obligations to be refunded divided by the sum of the products derived by multiplying the principal amounts expressed in one thousand dollar units of such obligations to be refunded maturing on each maturity date by ten times the number of years from the date of the proposed refunding bonds to the respective maturities of the obligations to be refunded. In all cases the net effective interest rate shall be computed without regard to any option of redemption prior to the designated maturity dates of the obligations to be refunded.

(6) (a) "Net interest cost" of a proposed issue of refunding bonds means the total amount of interest to accrue on said refunding bonds from their date to their respective maturities, less the amount of any premium above par or plus the amount of any discount below par, at which said refunding bonds are being or have been sold.

(b) "Net interest cost" of outstanding obligations to be refunded means the total amount of interest which would accrue on said outstanding obligations from the date of the proposed refunding bonds to the respective maturity dates of said outstanding obligations to be refunded. In all cases the net interest cost shall be computed without regard to any option of redemption prior to the designated maturity dates of the obligations to be refunded.

(7) "Public body" means the transportation commission; any state educational institution, or other state institution, its board of regents, or other governing body thereof constituting a body corporate; any county; any municipality as defined by section 31-1-101 (6), C.R.S.; any school district; any special district, including any local government agency, corporation, quasi-municipal corporation, or other entity, organized or acting pursuant to the provisions of title 32 (except article 8), C.R.S.; and any water conservancy district, city housing authority, county housing authority, urban renewal agency, community redevelopment agency, any other corporate district, any other corporate authority, any corporate commission, or any other political subdivision of this state constituting a body corporate.

(8) "Revenue obligation" means revenue bonds or any other obligation payable solely from and pledging only specified income or revenue of the public body, which bonds or obligations do not constitute a debt or indebtedness of such public body.

(9) "Special obligation refunding bonds" means bonds issued by the public body pursuant to section 11-56-112.