A. Subject to applicable provisions of the City Charter and in accordance with the specifications adopted for particular work by the Council, progress payments may be made by the City periodically as required by the contract for the improvement work, on the basis of a certificate concerning the same, filed with the Auditor by the Responsible Engineer.

B. The progress payment certificate shall show the amount of work and material applied to the local improvement or public improvement and not included in any prior certificate, the reasonable value of the work and material, the contract price thereof, the amount to be retained pursuant to the contract, and the amount to be paid as a progress payment. Contract provision for the progress payments shall be deemed sufficient without further approval by the Council, except that if the contractor is found to be delinquent, if the payment is the last payment to be made before payment of retainage pursuant to the contract, or if any progress payment covers work which is in addition to or an extra over the basic contract, then a progress payment shall not be made pursuant to the Responsible Engineer’s certificate until such certificate has been presented to the Council and approved by the Council, or the Council has separately authorized the extra work.