伊朗核协议的截止日期是什么时候？
**Answer:** The original Joint Comprehensive Plan of Action (JCPOA) had no fixed expiration date, but its key restrictions on Iranian nuclear activities were designed to phase out over 15 years from 2015, with the most significant constraints ending around 2030.
然而，由于美国在2018年退出，该协议实际上已经失效，截至2026年，核谈判目前不存在商定的截止期限。
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谈判的当前状态
Vice President Vance stated that Iran must cut enrichment levels to end regional conflict, signaling that any new agreement would require Iranian concessions on nuclear capability. No formal negotiation timeline has been established between the parties.
地区背景
Iran maintains significant geopolitical influence with 80 tracked signals in current intelligence networks, alongside involvement in proxy conflicts in Yemen and broader competition for regional resources. The nuclear question remains entangled with broader US Iran tensions rather than operating under a standalone deadline framework.