Most agencies require that adoptive parents be 40 or under.

If the city does not follow through, the agency will require it to filter its water beginning in May 2002.

The agency could also require the companies to do additional safety studies.

"Most federal agencies now require some form of program evaluation."

Usually in such a situation, the agency would require another trial.

Other public agencies were encouraged, but not required, to protect species.

In fact, the agency is already requiring "state implementation plans."

In order to make a health claim for food, the agency requires "significant scientific agreement."

The agency did not require a company to document its losses.

The agency required an additional safety study before it would approve the drug.