According to the provisions of the interim agreement, Iran continues to produce low-enriched (below 5%) uranium and keeps both 5% and 20% enriched uranium stocks on its soil. Iran maintains centrifuge production capabilities including the skills of the workforce and continues with centrifuge R&D testing. Iran is allowed to produce additional centrifuge rotors only to replace broken ones, but is not restricted in its production of other key centrifuge components or raw materials. In addition, no new centrifuges will be installed or new enrichment locations will be built during this period. With regard to Iran's uranium stockpile and production, some of the 5% enriched uranium and all the 20% enriched uranium will be converted to oxides. In terms of capacity – that is, when Iran is able to produce enough weapons-grade UF6 material for a single nuclear explosive – this moves the sliding bar to three months from the currently-estimated two to three weeks window given Iran's currently known facilities.

Construction work in non-nuclear parts is permitted at the Arak IR-40 reactor, and reactor component manufacturing for IR-40 can proceed elsewhere. There are no restrictions to the production of heavy water. However, the halting of fuel production at Isfahan that would feed the Arak reactor and prohibiting the installation of nuclear  components delays the commissioning of the Arak reactor until 2016.