The association and other groups challenged those restrictions, but lost.
Over the years, the group challenged any suggestion that it was connected to terrorism.
The environmental group is challenging the dispensation in the courts.
Now, a group representing law schools is challenging the government's policy of tying dollars to access.
The group is not challenging the termination of those contracts.
This group of offenders are particularly challenging due to language barriers and cultural differences.
A group of authors and publishers is challenging the company's right to scan books that are still under copyright.
The group challenged Republicans and Democrats who pushed for cuts to these services.
In 1939 a group of "young Turks" challenged the incumbent leadership for control.
However, environmental groups in the city challenged the decision in court.