standards development organization
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... except in the case where such document is the product of a joint
development effort between the IETF and another standards development
organization or the document is a republication of the work of
another standards organization. Such exceptions must be approved on
an individual basis by the IAB ...
... in cases where the material to be extracted is the product of a
joint development effort between the IETF and another standards
development organization or is a republication of the work of
another standards organization. Such variations must be approved
on an individual basis by the IAB ...