1.) No, it hasn't given up it's stockpile. It was never required to give up it's stock pile.
2.) It could neither have been certified by the IAEA or have happened already because it isn't a prat of the agreement. What is a part of the agreement is they will limit their stockpile at certain times for certain reasons. Funny that guys like
@HomerThompson and
@Strychnine don't seem to know that.
3.) I'll just break down more of the spin of this agreement by the Left. First of all, let's address the "Iran has to give up it's centrifuges lie". No they don't. According to the agreement, Nantanz specifically can keep in operation 5,060 centrifuges. Sounds good in comparison to how many they have, right? Not when you actually read the reports and realize that that is essentially maximum capacity of centrifuges they've been able to keep in operation from 2009 to 2015 when they were amassing thier stockpile. 2010 is when we hit them with stuxnet, and that's where some of the drop off from 5 to 3 thousand occurs. After the recovery, they ramped up to full capacity to make up for lost time. In reality, all this agreement forces Iran to do is all they were doing prior to Stuxnet, and nothing more.
https://www.armscontrol.org/print/3988
From 2010:
http://isis-online.org/uploads/isis-reports/documents/IAEA_Iran_Report_Analysis_18Feb2010.pdf
From 2011:
From 2012:
4.) "No plants other than Natanz are available for enrichment". Cool. Only 2 other plants were envolved in enrichment anyway, and neither of them anywhere on the level that Natanz is. So once again a major section of the agreement is utterly meaningless.
5.) The Fordow Underground Enrichment Center can no longer be used for enrichment and must be converted into a nuclear, physics and technology center.
Once again, sounds good at face value. Too bad They hadn't been using Fordow to enrich anything for two years prior to this agreement. Yet another major bullet point of the agreement that does not prevent or hinder Iran from doing anything they couldnt do before.
http://www.nti.org/learn/facilities/165/
So again, The US got Iran to agree to do a bunch of things they were already doing, and got them to agree to continue producing uranium at a rate they'd been producing it all along, while allowing them to keep a stockpile large enough to make somewhere in the neighborhood of 12-16 nukes, gave them 150 billion dollars to do it, and pretended like that somehow prevented them from doing anything. You guys should be ashamed of yourselves.