This was not an exemption. What I was referring to was a recognition by the IUCN that species that have sustainable, abundant populations should not be regulated or restricted in trade, because they are abundant. As long as there is management in place, the IUCN, in the specific passage I quoted, recognized that indigenous and local communities should be able to harvest species as long as they're abundant.
On February 1st, 2007. See this statement in context.