ACP 131(F), COMMUNICATIONS INSTRUCTIONS - OPERATING SIGNALS:
An unclassified publication of the Combined Communications-Electronics Board (CCEB)
comprised of five NATO member nations: Australia, Canada, New Zealand,
United Kingdom and United States.
( As of April 2009 - Link )

Reference: The BlackSwan Comunications Exercise (COMEX)
 
Project Overview and Notes for Users - Important "Q-Code" Notes
 
Frequently Used BlackSwan Codes - (Updated 10/13/22)

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