21.   But why should that law impose a heavier burden on one side than the other?

22.   Chantal argued unsuccessfully that the new law imposed a stiffer standard for plaintiffs.

23.   California law imposes restrictions on their disposal.

24.   Current federal law imposes no time limits.

25.   During the last three decades, federal law has imposed increasingly strict air pollution standards on new power plants.

26.   Existing federal laws impose limits on party spending on behalf of congressional and presidential candidates.

27.   Federal drug laws impose a series of escalating sentences, depending on drug quantity.

28.   Federal law imposes strict limits on the amounts of hard money that can be raised.

29.   First, because the original law imposed no environmental requirements, for many years mining companies could and did sink mines and then abandon them.

30.   Federal law imposes strict time limits.