Above all, there is no clear indication that the Government has the means or the will to enforce its ambitious pollution standards.

The move is mostly to avoid tougher fuel economy and air pollution standards for cars.

Largely to avoid tougher fuel economy and air pollution standards for cars.

But still other companies have resisted the effort to bring them into compliance with pollution standards, federal officials say.

The credits could be bought by companies that are falling short of pollution standards.

We were able to meet the pollution standards with this new carburetor.

The water authorities thus not only set and enforce pollution standards, they are major polluters themselves.

More than 90 percent of the Everglades already meets the stringent pollution standard.

But setting tougher pollution standards will not give us cleaner air.

They are also held to less stringent pollution standards.