1.   They immediately began proceedings for judicial review to challenge the validity of the Regulations.

2.   Although the restitution order has been upheld on appeal, Nichols continues to challenge the validity of this order.

3.   And the Netherlands has challenged its validity in the European Court of Justice.

4.   Associated Industries of Massachusetts, the trade group for large businesses including Boston Edison and other utilities, had challenged the validity of the signatures.

5.   All this brings comfort to Miami fans as super-agents and superstars threaten still to challenge the validity of the decertification vote.

6.   He challenged the validity of the search, but was convicted and lost his appeal last year before the Wisconsin Supreme Court.

7.   He said he was not challenging the validity of hand counts on their face.

8.   In Palm Beach County, the judge assigned to hear six consolidated election lawsuits challenging the validity of the county ballot removed himself Monday after being accused of bias.

9.   Instead, his attorneys are challenging the validity of recovered memory itself, the notion that people sometimes recall long-forgotten traumatic events.

10.   Lett may be challenging the validity of the test collection and processing arrangements, something he did before the imposition of his second ban.