"Our decision today will be the agreed base for the final text of the Joint the Plan of Action (the final deal) is of vital importance," Zarif said reading out a joint statement at a joint press conference with EU foreign policy chief Federica Mogherini in Lausanne, Switzerland, on Thursday.
"Now we can start drafting the final agreement and its annexations by relying on the solutions achieved in the last few days," he said after eight days of marathon talks with negotiators from the six world powers.
"As Iran continues its peaceful nuclear program, the degree and capacity of its enrichment and the size of its (enriched uranium) stockpile will be limited for specific periods and Natanz will be the only enrichment center in Iran. Nuclear enrichment R&D on centrifuge machines in Iran will be conducted on the basis of an agreed timeline and level."
Zarif said Fordo will turn from a nuclear enrichment plant to a nuclear, physics and technological center, where Iran will received international cooperation.
The Iranian foreign minister also said the country's Arak Heavy Water Reactor will remain in place after being redesigned and renovated through international cooperation, stressing that the facility will remain a Heavy Water Reactor in nature, but will produce plutonium which won't have the capability to be used for nuclear weapons production.
He said "there won't be any reprocessing at the Arak facility and its consumed nuclear fuel will be exported".
"A collection of arrangements have been agreed for the supervision over the implementation of the contents of the Joint Plan of Action (final deal) which include 3.1 Safeguard Agreement code and the voluntary implementation of the additional protocol (to the NPT); the International Atomic Energy Agency (IAEA) will also use modern inspection technologies and will be given more agreed access to verify past and present issues," Zarif said.
He said Iran will partner in international nuclear projects, "including power plant and research reactor construction as well as nuclear safety and security".
Zarif said all sanctions against Iran will be lifted.
All UN Security Council sanctions resolution against Iran will be annulled as they did not help the settlement of the nuclear standoff between Iran and the six world powers.
"The EU will terminate imposition of its nuclear-related economic and financial sanctions and the United States will also stop implementation of its nuclear-related financial and economic sanctions simultaneous with the implementation of Iran's major nuclear undertakings in a way that they are verified by the IAEA," Zarif said.
Zarif said the final deal will be endorsed by a UN Security Council sanctions in a move to annul all the previous nuclear-related resolutions against Iran.
He said drafting of the deal will start soon to prepare the Joint Plan of Action by the July 1 deadline.
In a subsequent solo press conference, Zarif underlined that Iran's nuclear R&D will continue and none of Iran's nuclear facilities will be shut down.
He repeated that all the US, EU and UN security council sanctions against will be removed.
He said over 5,000 centrifuge machines will work at Natanz to do industrial-scale enrichment for Iran, while around 1,000 more centrifuges will operate at Fordo, but not for industrial-scale uranium enrichment.
Zarif said Iran will continue nuclear fuel production at home.
He cautioned that the seven nations party to the nuclear talks might present today's agreement in different ways as they see fit.
Zarif reiterated that a final deal should be worked out in the next three months.
He appreciated the Iranian Supreme Leader for his support throughout the talks as well as the head of the Atomic Energy Organization of Iran Ali Akbar Salehi for his technical contribution to the negotiations.
Iran and Group 5+1 (the five permanent UN Security Council members plus Germany) started their new round of talks in Lausanne, Switzerland, last Thursday to narrow their differences over Tehran's nuclear energy program ahead of a July 1 deadline.