centrifuges, and will comme
nce testing of up to 30 IR
-
6 and IR
-
8 centrifuges
after eight and a half years, as detailed in Annex I.
4.
As Iran will be phasing out its IR
-
1 centrifuges, it will not manufacture or
assemble other centrifuges, except as provided for in Annex I, and will r
eplace
failed centrifuges with centrifuges of the same type. Iran will manufacture
advanced centrifuge machines only for the purposes specified in this JCPOA.
From the end of the eighth year, and as described in Annex I, Iran will start to
manufacture agre
ed numbers of IR
-
6 and IR
-
8 centrifuge machines without
rotors and will store all of the manufactured machines at Natanz, under IAEA
continuous monitoring until they are needed under Iran's long
-
term enrichment
and enrichment R&D plan.
5.
Based on its long
-
term plan, for 15 years, Iran will carry out its uranium
enrichment
-
related activities, including safeguarded R&D exclusively in the
Natanz Enrichment facility, keep its level of uranium enrichment at up to 3.67%,
and, at Fordow, refrain from any uranium e
nrichment and uranium enrichment
R&D and from keeping any nuclear material.
6.
Iran will convert the Fordow facility into a nuclear, physics and technology
centre. International collaboration including in the form of scientific joint
partnerships will be es
tablished in agreed areas of research. 1044 IR
-
1
centrifuges in six cascades will remain in one wing at Fordow. Two of these
cascades will spin without uranium and will be transitioned, including through
appropriate infrastructure modification, for stable
isotope production.
The other
four cascades with all associated infrastructure will remain idle. All other
centrifuges and enrichment
-
related infrastructure will be removed and stored
under IAEA continuous monitoring as specified in Annex I.