All municipal funds, the investment of which is not governed by other provisions of this code and not required for the payment of current obligations and not otherwise prohibited, may be invested and reinvested in:

(1) Any direct obligation of, or obligation guaranteed as to the payment of both principal and interest by, the United States of America;

(2) Any evidence of indebtedness issued by any United States government agency guaranteed as to the payment of both principal and interest, directly or indirectly, by the United States of America including, but not limited to, the following: Government National Mortgage Association, federal land banks, federal home loan banks, federal intermediate credit banks, banks for cooperatives, Tennessee Valley Authority, United States postal service, farmers home administration, export-import bank, federal financing bank, federal home loan mortgage corporation, student loan marketing association and federal farm credit banks;

(3) Any evidence of indebtedness issued by the Federal National Mortgage Association to the extent such indebtedness is guaranteed by the government National Mortgage Association;

(4) Any evidence of indebtedness that is secured by a first lien deed of trust or mortgage upon real property situate within this state, if the payment thereof is substantially insured or guaranteed by the United States of America or any agency thereof;

(5) Direct and general obligations of this state;

(6) Any undivided interest in a trust, the corpus of which is restricted to mortgages on real property and, unless all of such property is situate within the state and insured, the trust at the time of the acquisition of the undivided interest, is rated in one of the three highest rating grades by an agency which is nationally known in the field of rating pooled mortgage trusts;

(7) Any bond, note, debenture, commercial paper or other evidence of indebtedness of any private corporation or association: Provided, That any such security is, at the time of its acquisition, rated in one of the three highest rating grades by an agency which is nationally known in the field of rating corporate securities: Provided, however, That if any commercial paper or any such security will mature within one year from the date of its issuance, it shall, at the time of its acquisition, be rated in one of the two highest rating grades by any such nationally known agency and commercial paper or other evidence of indebtedness of any private corporation or association shall be purchased only upon the written recommendation from an investment advisor that has over $300 million in other funds under its management;

(8) Negotiable certificates of deposit issued by any bank, trust company, national banking association or savings institution which mature in no more than five years and are fully collateralized;

(9) Interest earning deposits including certificates of deposit, with any duly designated state depository, which deposits are fully secured by a collaterally secured bond as provided in section four, article one, chapter twelve of this code: Provided, That a banking institution is not required to provide this collaterally secured bond, or other security in lieu of bond, if the deposits accepted are placed in certificates of deposit meeting the following requirements: (A) The funds are invested through a designated state depository selected by the municipality; (B) the selected depository arranges for the deposit of the funds in certificates of deposit in one or more banks or savings and loan associations wherever located in the United States, for the account of the municipality; (C) the full amount of principal and accrued interest of each certificate of deposit is insured by the Federal Deposit Insurance Corporation; (D) the selected depository acts as custodian for the municipality with respect to such certificates of deposit issued for the municipality's account; and (E) at the same time that the municipality's funds are deposited and the certificates of deposit are issued, the selected depository receives an amount of deposits from customers of other financial institutions wherever located in the United States equal to or greater than the amount of the funds invested by the municipality through the selected depository;

(10) Mutual funds registered with the Securities and Exchange Commission which have assets in excess of $300 million; and

(11) Deposits with any duly designated state depository that is selected and authorized by the municipality to arrange for the redeposit of the funds through a deposit placement program that meets the following conditions:

(a) On or after the date that the municipal funds are received the selected depository: (i) Arranges for the redeposit of the funds into deposit accounts in one or more federally insured banks or savings and loan associations that are located in the United States; and (ii) serves as custodian for the municipality with respect to the funds deposited into such accounts.

(b) Municipal funds deposited in a selected depository in accordance with this section and held at the close of business in the selected depository in excess of the amount insured by the Federal Deposit Insurance Corporation shall be secured in accordance with section four, article one, chapter twelve of this code.

(c) The full amount of the funds of the municipality redeposited by the selected depository into deposit accounts in banks or savings and loan associations pursuant to this subsection (plus accrued interest, if any) shall be insured by the Federal Deposit Insurance Corporation.

(d) On the same date that the funds of the municipality are redeposited pursuant to this subsection, the selected depository receives an amount of deposits from customers of other financial institutions through the direct placement program that are equal to the amount of the municipality’s funds redeposited by the selected depository.