The Diversion Information Exchange Forum (DIEF) is a sui generis body for informal voluntary exchanges between States Parties to the Arms Trade Treaty (ATT) and signatory States concerning concrete cases of detected or suspected diversion and for sharing concrete, operational diversion-related information.
The DIEF was formally established by the Sixth Conference of States Parties (CSP) (see paragraph 40 of the CSP6 Final Report).
The operation of the DIEF is governed by the following: