Tips have always been an important part of the commission's enforcement effort.

So far, however, the talk has not been matched by any enforcement effort.

He said the department would step up its enforcement efforts in light of the new cases.

Most countries have not made serious enforcement efforts, they said.

She traced the city's new enforcement efforts to a moment last spring.

For an administration eager to show off its enforcement efforts, the more difficult questions may come later.

After their testimony, the administration announced the first results of its new enforcement efforts.

"What this will do is strengthen the enforcement effort of the department," she said.

Q.: What are you going to focus your enforcement efforts on right now?

But the enforcement effort is none too easy, nor without cost.