A much more effective rule would state when she has to be in bed.

The new rules, effective Monday, would halve those periods, to 30 minutes and one hour.

In the view of environmentalists, the most effective rules so far were those written by Congress when the law was drafted.

This would be a very effective rule in most households.

However, effective January 1, 2011, new rules require the registration of almost all paid federal tax return preparers.

Key to ensuring effective rule of law is a functioning justice system.

The new guidelines announced last week pay lip-service to the need for clear and effective rules.

At present, the European Union has no effective rules for dealing with these environmental problems.

Against this backdrop, strict and effective rules on arms exports are required, now more than ever.

But there should be effective rules on plurality, he says.