Such bonds as may be issued pursuant to the authority granted in Section 21-27-23 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. They shall bear interest at a rate to be determined pursuant to the sale of the bonds, and shall be payable at such time or times as shall be prescribed in the ordinance authorizing them. They shall mature at such time or times, not exceeding the said estimated life of the contemplated system or improvement, and in no event longer than thirty (30) years from their date, and at such place or places 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 granted in Section 21-27-23 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 ordinance. 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 interest rate specified for the same bond issue. Such bonds shall be sold in such manner and upon such terms as the governing authorities of the municipality shall determine, provided that 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, and the interest rate on any one (1) interest maturity shall not exceed the maximum interest rate allowed on such bonds. 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. The principal of and interest upon such bonds shall be payable solely for the revenues derived from the operation of the system acquired or improved with proceeds of the sale of such bonds. No bond issued pursuant to the authority granted in Section 21-27-23 shall constitute an indebtedness of a municipality within the meaning of any statutory or charter restriction, limitation or provision. It shall be plainly stated on the face of each such bond in substance that the same has been issued pursuant to the authority granted in Section 21-27-23 and that the taxing power of the municipality issuing the same is not pledged to the payment of such bond or interest thereon, and that such bond and the interest thereon are payable solely from the revenues of the system to acquire or improve which such bond is issued.

Such bonds shall be sold on sealed bids at public sale in the manner provided by Section 31-19-25. In the event the issuing municipality shall have received a commitment from any agency of the United States of America for the purchase of all or any portion of an issue of such bonds prior to the sale thereof or for financial assistance in providing debt service on such bonds, then, and in such event, said issue or any part thereof may be sold to the United States of America or any agency thereof at private sale. Provided, however, no bonds issued under the authority of Section 21-27-23 shall bear an overall maximum interest rate greater than that allowed in Section 75-17-103, Mississippi Code of 1972.

It is specifically provided 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 of the municipality authorizing their issuance.

It is specifically provided that any bond issue to be awarded and sold to the United States of America or any agency thereof may be issued as one or more amortized bonds without coupons, may be dated the date of delivery thereof, and the purchase price for such bond or bonds may be delivered in multiple advances, with interest to accrue on the principal advanced form the date of each such advance. The amount of each such advance and the date thereof shall be registered on the reverse of each such bond and attested by the manual signature of the clerk of the municipality.

On issues of Five Million Dollars ($5,000,000.00) or more, the governing authorities of a municipality may retain the services of a fiscal advisor to assist in the sale of bonds hereunder and pay to such fiscal advisor a fee not to exceed the following amount: Twenty-Five Thousand Dollars ($25,000.00) plus one-quarter of one percent (¼ of 1%) of the amount of the issue in excess of Five Million Dollars ($5,000,000.00). No such fiscal advisor shall be eligible to bid for or participate in the underwriting of the bonds for which he acted as advisor.

Before a person can qualify as a fiscal advisor under the terms of this section, he shall have been actively engaged in the business of fiscal counseling for municipalities, or the underwriting of municipal bonds, for a period of five (5) years prior to qualifying under this section. A partnership or corporation may become a fiscal advisor hereunder with the same qualifications. Such person, corporation, or partnership shall have had prior experience as a fiscal advisor or been involved in the underwriting or investing in bonds of the state of Mississippi, or one or more of the subdivisions thereof, and such person, partnership or corporation shall be recognized in the fiscal community as a reputable and qualified fiscal advisor.