Summary: House Foreign Affairs Chairman Royce and Ranking Member Engel are sponsoring bipartisan Iran sanctions legislation that will: broaden economic sanctions; target human rights violators; and increase oversight of the implementation and enforcement of current sanctions. This legislation tightens existing sanctions on Iran to adapt to a constantly evolving situation and further increases the price paid by the regime on a macroeconomic level. The bill states that it is the policy of the United States to prevent Iran from acquiring a nuclear weapons capability.