For nearly 20 months, the legal status of a dissident Iranian group has remained in limbo, mired in a U.S. State Department review of the association’s official designation as a foreign terrorist organization.

A federal appeals court in Washington directed the agency in July 2010 to take another look at the People’s Mojahedin Organization of Iran, saying the government violated the group’s rights during an earlier assessment. But the agency, almost two years later, still hasn’t made a decision.