Navistar CEO announces retirement effective immediately

Navistar International Corp. announced today it has named Lewis B. Campbell, former chairman, president, and CEO of Textron Inc., as executive chairman of Navistar's board of directors and interim Chief Executive Officer. Dan Ustian is retiring as chairman, president, and CEO effective immediately and is leaving the board of directors.

The company also has promoted Troy Clarke to president and chief operating officer. In June, Clarke, who had been president of Navistar Asia Pacific, assumed responsibility for all Navistar's operations in the newly created role of president, truck and engine.

Ustian has come under criticism for his role in the company's strategy for meeting 2010 EPA emissions using only an in-cylinder solution and eschewing the selective catalytic reduction chosen by all other engine makers to meet the regulations.

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