TEHRAN (Press Shia) – A senior Iranian official said if the US president signs a recent legislation passed by Congress to renew sanctions against Tehran for 10 years, it would be tantamount to a breach of the JCPOA, the July 2015 nuclear deal between Tehran and six world powers.

Speaking to reporters at a press conference in Tehran on Tuesday, Head of the Strategic Research Center of Iran's Expediency Council Ali Akbar Velayati said the country’s decision to respond to the recent legislation, known as Iran Sanctions Act (ISA), will be taken in a meeting of the Iranian supervisory council on implementation of the Joint Comprehensive Plan of Action (JCPOA).

“There is a consensus among the members of the council that if the legislation to extend the (anti-Iran) sanctions is signed by the US president, it would be in violation of the JCPOA,” Velayati, who is also a member of the council, noted.

In that case, there will be definitely a “necessary, clear and strong” response from Iran, he added.

The legislation passed the US Senate by 99-0 on Thursday. It passed the House of Representatives nearly unanimously in November, and congressional aides said they expected President Barack Obama would sign it.

Meanwhile, a senior lawmaker on Friday said Iran’s parliament is weighing a series of measures in response to the US Congress.

While the JCPOA, the nuclear agreement between Iran and the Group 5+1 (Russia, China, the US, Britain, France and Germany) came into force in January, some Iranian officials complain about the US failure to fully implement the accord.

Leader of the Islamic Revolution Ayatollah Seyed Ali Khamenei said last month that if the sanctions were extended, Iran would definitely respond to it.