A former US presidential aide says Washington should pass a law mandating military action against Iran if the Islamic Republic violates the terms of a final deal over its nuclear program.

Speaking at the annual conference of the Institute for National Security Studies in Tel Aviv on Tuesday, Dennis Ross said the US must be clear what the consequences would be for any possible Iranian violations of the deal in any agreement over Tehran’s nuclear work.

“You cannot wait until you face the violations, and decide what it (the consequence), will be,” he said. “You actually should work that out now.”

Ross, who from 2009 to 2011 was a key White House official dealing with Iran, said this is an area where the US administration and Congress can cooperate and agree in advance what the price of violations will be.

If Iran is found to have been engaged in a non-civilian nuclear work despite a nuclear agreement, said Ross, then the consequence should be the use of American military force.

“There should be legislation, worked out with the [Capitol] Hill in advance, which says if we catch them with the following kinds of violations, then the implication is that we are going to take out those facilities,” he added.

He said a law that would authorize military action if Iran violates the deal, could also address Israel's concerns.

Iran and the P5+1 group of countries – Russia, China, France, Britain, the US and Germany – are seeking to reach a high-level political agreement by April 1 and to confirm the full technical details of the accord by July 1.

Since an interim deal was sealed in the Swiss city of Geneva in November 2013, the negotiating sides have missed two self-imposed deadlines to ink a final comprehensive agreement over Tehran’s nuclear energy program.

The International Atomic Energy Agency has in numerous times confirmed Iran has been abiding by its commitments to the Geneva deal.

The Agency that is supervising Tehran's nuclear program, has never reported any deviation in Iran's nuclear program toward militarism.

AR/NN/HRB