The panel overturned a 1995 lower court decision that would have certified the largest class-action case in American history.
In the federal appeal, a divided 12-judge panel overturned state court decisions that had approved the conviction.
The new injunction came just six hours after the three-judge panel, in a 2-1 vote here, overturned the original injunction.
The decision was the first time the panel overturned a decision by city officials.
Both athletes won on appeal, but an international panel overturned those decisions.
He said he was especially concerned that panels would overturn Federal or state decisions when the pertinent regulations exceeded international norms.
But a three-judge panel of the Fourth Circuit overturned that verdict late last year.
But a three-judge panel overturned the conviction in early April, and freed her from prison.
The panel voted 2-1 to recuse themselves in November 2005, and so overturned their previous decision.
However, the panel rarely overturns a staff decision.