Truck manufacturer Volvo says it will lay off 600 workers at its Hagerstown plant in the first half of 2007.
The Swedish company says the layoffs reflect expectations for an industry-wide decline in demand for heavy-duty trucks equipped with new anti-pollution technology.
The technology is necessary to meet U.S. emission standards going into effect Jan. 1.
The company says the plant employs about 1,700 workers.