article_snippet: If and when a final agreement is reached, the President may temporarily waive some sanctions if Iran's compliance can be verified.
article_snippet: Congress has, for Congress part, authorized the President to provide limited, temporary and reversible sanctions relief so long as doing so advances U.S. national security interests.
article_snippet: In exchange for Iran following through on Iran promises to constrain Iran program in accordance with a multilateral agreement before, Congress will be asked to lift sanctions permanently.
article_snippet: If Tehran demonstrates Tehran long-term commitment to limit Tehran nuclear program to exclusively peaceful purposes, then when the time comes, Congress should be ready to lift sanctions.
article_snippet: While Iran must not install unauthorized centrifuges, attempt a secret program or otherwise fail to adhere to a multilateral agreement before, Congress also has responsibilities under the agreement, including appropriations for Congress execution and refraining from imposing new sanctions in violation of either the letter or the spirit of the deal.