For the purpose of acquiring, constructing, improving, enlarging, extending and repairing a sewage disposal system or sewage disposal systems, a municipality is authorized to issue bonds payable from and secured by a pledge of all or any part of revenues under any contract or contracts it enters into under Sections 21-27-161 through 21-27-191 and from all or any part of any revenues derived from the operation of the waterworks system, water supply system, treatment facility, sewerage system or sewage disposal system and pledged for such purpose by the municipality. Said bonds shall be in such form and denomination as prescribed by the governing body of the municipality. Such bonds may be serial or term; redeemable, with or without premium, or nonredeemable; registered or coupon bonds with registration privileges as to either principal and interest; principal only or both; shall bear interest at a rate or rates to be determined pursuant to the sale of the bonds; and shall be payable at such time or times and shall mature at such time or times not exceeding the said estimated life of the contemplated system or improvement, but in no event exceeding thirty (30) years from their date, and at such place or places as shall be prescribed in the bond resolution authorizing their issuance; provided, however, that any bond issue to be awarded and sold to the United States of America or any agency thereof shall mature at such time or times, not to exceed thirty-five (35) years, as shall be prescribed in the ordinance authorizing their issuance. Any provisions of the general laws to the contrary notwithstanding, any bonds and interest coupons issued pursuant to the authority of Sections 21-27-161 through 21-27-191 shall possess all the qualities of negotiable instruments. The bonds and the interest coupons shall be executed in such manner and shall be substantially in the form prescribed in the authorizing resolution. In case any of the officers whose signatures or countersignatures appear on the bonds or interest coupons shall cease to be such officers before delivery of such bonds, such signatures or countersignatures shall nevertheless be valid and sufficient for all purposes the same as if they had remained in office until such delivery. No bond shall bear more than one (1) rate of interest; each bond shall bear interest from its date to its stated maturity date at the interest rate specified in the bid; all bonds of the same maturity shall bear the same rate of interest from date to maturity; all interest accruing on such bonds so issued shall be payable semiannually or annually, except that the first interest coupon attached to any such bond may be for any period not exceeding one (1) year.

No interest payment shall be evidenced by more than one (1) coupon and neither cancelled nor supplemental coupons shall be permitted; the lowest interest rate specified for any bonds issued shall not be less than seventy percent (70%) of the highest rate specified for the same bond issue. Such bonds shall not bear a greater overall maximum interest rate to maturity than that allowed in Section 75-17-103, Mississippi Code of 1972. Each interest rate specified in any bid must be in multiples of one-eighth of one percent (⅛ of 1%) or in multiples of one-tenth of one percent (1/1 of 1%). If serial bonds, such bonds shall mature annually, and the first maturity date thereof shall not be more than five (5) years from the date of such bonds. Such bonds shall be legal investments for trustees and other fiduciaries, and for savings banks, trust companies and insurance companies organized under the laws of the state of Mississippi. The bonds and interest coupons shall be exempt from all state, county, municipal and other taxation under the laws of the state of Mississippi. No bond issued pursuant to Sections 21-27-161 through 21-27-191 shall constitute an indebtedness of a municipality within the meaning of any statutory or charter restriction or limitation upon indebtedness. Such bonds shall be sold on sealed bids at public sale in the manner provided by Section 31-19-25, as now or hereafter amended, upon such terms as the governing authorities of the municipality may determine, not inconsistent with the provisions of Sections 21-27-161 through 21-27-191, but no sale shall be made at a price so low as to require the payment of interest on the money received therefor at more than that allowed in Section 75-17-103, Mississippi Code of 1972, computed with relation to the absolute maturity of the bonds, in accordance with standard tables of bond values, excluding from such computation the amount of any premium to be paid on redemption of any bonds prior to maturity. Sections 21-27-161 through 21-27-191 shall be full and complete authority for the issuance of the bonds provided for herein, and no restriction or limitation otherwise prescribed by law shall apply herein, nor shall such bonds constitute an indebtedness of the municipality within the meaning of any constitutional or statutory limitation.