This page contains circulars sent by SIGCo and can be viewed or downloaded. All files are in Adobe Acrobat format. Internet Explorer (IE) users can right-click on
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September 2008
OPA Limit Update
January 2008
ICB Limit
October 2007
2008 Continuity Credit
September 2007
ICB Processing Delays
November 2006
2007 Loyalty Discount Initiative
January 2006
ICB - APIS Requirements
February 23, 2005
ICB Renewal Update II
January 14, 2005
ICB Renewal Update I
March 22nd, 2004
International Carrier Bonds (ICB) Additional Documents