Weekly Settlement - Frequently Asked Questions (FAQ)


This page lists a number of the questions that are frequently asked about the move to weekly settlement. If you do not see the question you have, please contact us at ich@iata.org.
  • When does weekly settlement start?
  • What is meant by an Open or Closed period?
  • So what is meant by Open or Closed Periods when we go to weekly settlement?
  • What changes will there be to the ICH Web?
  • What changes will there be to Web F12 file formats?
  • Do I have to submit my claims on a weekly basis?
  • Will there be changes to IDEC files?
  • Do I have to send invoices on a weekly basis?
  • Is the ACH moving to weekly settlement?
  • Will the ACH use the same Calendar?
  • What is happening with the 5 Day Rate (FDR)?
  • What is happening with the Monthly Mean Rate (MMR)?
  • What is happening to Call Day Adjustments?
  • What happens if my claim or adjustment is late?
  • Are Associate Members also allowed to bill weekly?
  • Can I use the same invoice number for each of the four Periods?
  • As an Associate Member, I will submit monthly. Does that mean nothing else changes?
  • For planning my cashflow, can I just divide by present monthly balance by 4?