Two amendments approved to an appropriations bill from Representative Peter Roskam would ban sales from Boeing and from European rival Airbus, amid concerns the aircraft could be used for military purposes, the congressman said in a statement today.
One amendment would prohibit the Office of Foreign Assets Control from using funds to authorize a license necessary to allow aircraft to be sold to Iran. A second would bar loans from US financial institutions to purchase militarily adaptable aircraft.
Roskam, an Illinois Republican, said in a tweet that in the vote yesterday, "House Democrats did not mount any significant opposition and, in many cases, joined efforts to block the sale."
The news comes weeks after Boeing and Iran Air confirmed a tentative deal for the sale of passenger planes, described as a landmark for normalizing the difficult US-Iran relationship.
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The deal, valued at up to USD 25 billion, would be the largest between a US business and Iran since the 1979 Islamic revolution.
The Islamic Republic had been an international pariah prior to a nuclear deal reached in 2015, and the US still has some sanctions in place against Iran.
Boeing archrival Airbus in January reached a deal to sell Iran 118 aircraft worth about USD 25 billion. French officials in April said the transaction was in the final stages of winning approval from the US Office of Foreign Assets Control, a key hurdle, because some of the aircraft components are made in the US.
Roskam and some other lawmakers have opposed deals with Iran, asserting that Tehran remains a supporter of violent jihadists around the world.