The objective of sanctions may be on its way to achievement but has not been accomplished to date. U.S. officials believe that these sanctions caused Iran to return to the nuclear bargaining table in April 2012 with greater seriousness and intent toward peaceful resolution. Despite the imposition of what many now consider to be "crippling" sanctions, some in Congress believe that economic and diplomatic pressure on Iran needs to increase further and faster. In the 112th Congress, legislation would enhance both the economic sanctions and human rights-related provisions of a previous Iran sanctions laws However, movement on new sanctions might be on hold pending the outcome of a second round of nuclear talks slated for May 23 in Baghdad.

No firms have been sanctioned under the Iran-Libya Sanctions Act (ILSA), and it has terminated with respect to Libya. In August 2001, the Iran-Libya Sanctions Act (ILSA, P.L. 104-172) was renewed for another five years (P.L. 107-24). No firms have been sanctioned under ILSA, and ILSA has terminated with respect to Libya. In the 109th Congress, H.R. 282 and S. 333 contain provisions that would modify ILSA. This report discusses various issues including the background and passages of the ILSA and its effectiveness.