The reporting of subcontractor payments for all City contracts will be accomplished by using the Subcontractor Payment Certification Form. This form must be submitted with each invoice. Payment amounts must be remitted by the Contractor to the subcontractors no later than fourteen (14) business days after receipt from the CITY OF CHICAGO. The Subcontractor Payment Certification Form should reflect the aggregation of all invoices sent to the CITY OF CHICAGO for the previous month. The form requires the listing of invoice numbers sent to the individual user departments for payment. The amounts listed on the form must equal the total amount billed to the City for the preceding month.