Following President Trump’s decision on May 8, 2018 to withdraw the United States from the Joint Comprehensive Plan of Action (“JCPOA”), the US government announced that it would re-impose pre-JCPOA nuclear-related Iran sanctions (both primary and secondary) that were lifted under the JCPOA. As we reported previously, two "wind-down" periods—of 90 and 180 days respectively—commenced from the day of the announcement, during which non-US, non-Iranian companies were encouraged by the US government to withdraw from operations in Iran that would be affected by re-imposed sanctions. OFAC’s guidance discouraged non-US persons from engaging in new activity during the wind down periods, and stated that any such new activity may be a factor in connection with future enforcement action for actions taken after the wind-down period.

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