1.   City officials have implemented what they call Phase I of a contingency plan aimed at bringing pollution levels down.

2.   Elected officials will not implement this, however, without public prodding.

3.   In Chicago, if a major internal reform effort now underway proves ineffective, officials may implement a voucher program.

4.   In addition to federal assistance, Louisville officials have implemented measures to fight drug activity and other crimes.

5.   With evidence of buoyant consumer optimism, though, traders are concerned Fed officials may implement another preemptive rate increase to ward off inflation.

6.   Carl Bildt, the top civilian official implementing the Bosnian peace process, will hold more talks with senior Serb leaders Tuesday, a spokesman at his office said.