TEHRAN, Iran (AP) - Iran and six world powers have agreed on how to implement a nuclear deal struck in November.
Officials say the agreement kicks in on Jan. 20, starting a six-month clock for a final deal to be reached over Iran's contested nuclear program.
During that time, Iran agrees to limit its uranium enrichment to 5 percent, the grade commonly used to power reactors. The deal also commits Iran to stop producing 20 percent enriched uranium, which is only a technical step away from weapons-grade material, and to neutralize its 20 percent stockpile.
In exchange, economic sanctions Iran faces would be eased for six months while Britain, China, France, Germany, Russia and the United States continue negotiations with Iran on a permanent deal.
Secretary of State John Kerry is welcoming the deal. In a statement, he says further negotiations "represent the best chance we have to resolve this critical national security issue peacefully, and durably."