All installments established pursuant to Section 9-2-50 shall bear in § 9-2-10 of the Illinois Municipal Code and not more than the greater of (i) 9% annually or 70% of the Prime Commercial Rate in effect at the time of the passage of such ordinance, or (ii) the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, payable annually, and such interest shall begin to run from 60 days after the date when the first installment becomes due and payable. Interest on the first installment, if any, shall be due and payable and shall be collected at the same time as the first installment. Interest on the second and subsequent installments, if any, shall be due and payable and shall be collected with the installments respectively, as provided in this Division 2. Bonds to anticipate the collection of the installments of the assessment provided for in this Section may be issued after the entry of confirmation in any such proceeding, and such bonds shall draw interest from the date of issuing the same at the rate specified in said ordinance referred to in Section 9-2-10 and of not more than the rate the installments of the assessment against which the bonds are being issued bear, payable annually, and shall otherwise conform to the provisions of Section 9-2-119 or Sections 9-2-127 through 9-2-129.
     The special assessment or special tax described in Section 9-2-49 shall be collected in the manner prescribed in this Division 2 for other special assessments and special taxes, except that the collection of the first installment of such special assessment or special tax, or any part thereof, may be enforced if necessary by the sale of the property against which the same is levied, notwithstanding that the improvement for which the same is levied may not have been completed.
     The proceedings provided for in this Section also shall be governed by the other Sections of this Division 2 so far as they are applicable thereto, and not inconsistent with the provisions of this Section.
     With respect to instruments for the payment of money issued under this Section either before, on, or after the effective date of this amendatory Act of 1989, it is and always has been the intention of the General Assembly (i) that the Omnibus Bond Acts are and always have been supplementary grants of power to issue instruments in accordance with the Omnibus Bond Acts, regardless of any provision of this Act that may appear to be or to have been more restrictive than those Acts, (ii) that the provisions of this Section are not a limitation on the supplementary authority granted by the Omnibus Bond Acts, and (iii) that instruments issued under this Section within the supplementary authority granted by the Omnibus Bond Acts are not invalid because of any provision of this Act that may appear to be or to have been more restrictive than those Acts.
     This amendatory Act of 1971 is not a limit upon any municipality which is a home rule unit.
     This amendatory Act of 1972 is not a limit upon any municipality which is a home rule unit.