napolik - the document that you linked is a good resource, thanks.
PepeTheFrog - I get your point, but it would seem logical that in addition to the CTA, which is an agreement between the two parties, that something in the task order needs to pull this together. Thanks for referencing the FAQs, I have seen them previously.
My overall question is still left unanswered however. Specifically, does the task order to the CTA team leader have to specifically identify an additional task order number that would be associated with the CTA team member for them to identify for their GSA IFF reporting, or can the CTA team member use the CTA team leader task order number to report IFF?
If the later, it is assumed that the CTA team member should be specifically identified in the task order.