Is there a requirement to create and submit invoices and supporting documents (form 1, passenger coupon listing, etc.) to IS in text or .pdf format where the billed carrier prefers to review the billing using the old format or will this information, if requested, be generated by IS based on the data submitted in the IS-IDEC file. Essentially, the question is do we need to provide anything to IS other than the IS-IDEC file and supporting documentation (coupon images, SPA excerpts, etc.) for individual billings?