The U.N. Security Council unanimously approved a resolution Monday endorsing the landmark deal reached by Iran and six world powers to rein in its nuclear program in exchange for sanctions relief. Here are the main points:

— ENDORSEMENT: The resolution endorses the agreement, urges its full implementation and calls on all countries, regional and international organizations to take actions needed to implement it.

— U.N. NUCLEAR AGENCY: The head of the International Atomic Energy Agency must verify and monitor Iran's nuclear-related commitments and the resolution says "Iran shall cooperate fully as the IAEA requests to be able to resolve all outstanding issues."

— U.N. SANCTIONS: When Iran has completed a series of major steps to curb its nuclear program, and the IAEA has concluded that "all nuclear material in Iran remains in peaceful activities," seven U.N. Security Council resolutions related to sanctions against Iran will be terminated.

— REIMPOSING U.N. SANCTIONS: If one of the parties to the nuclear deal, like the United States, determines that Iran is not fulfilling its commitments, it can ask for a Security Council vote on a new resolution to continue the lifting of all U.N sanctions resolutions on Iran. When a vote takes place, the U.S. or the four other permanent members of the Security Council — Russia, China, Britain and France — could then veto the resolution, and the sanctions would automatically "snap back" in 30 days. Thus, by voting down a resolution on continuing lifting the sanctions, the Council would effectively be putting them back in place.

— TERMINATION: All provisions of the U.N. resolution will terminate in 10 years, including the "snap back" provision, and the resolution states that "the Security Council will have concluded its consideration of the Iranian nuclear issue." The six powers that negotiated with Iran — the five veto-wielding Security Council members and Germany — and the European Union sent a letter to U.N. Secretary-General Ban Ki-moon last week saying they have agreed to extend the "snap back" provision for an additional five years. They asked the letter, which is not legally binding, to be sent to the Security Council.