Mack Trucks announced Dec. 15 beginning in January 2016, the company will layoff 400 workers.

Christopher Heffner, public relations manager with Mack Trucks, Greensboro, N.C. emailed The Press stating, “the layoffs are the result of our need to adapt production to meet market demand.

“The bargaining unit employees will not receive a severance package, but will get certain benefits based on the collective bargaining agreement,” Heffner said.

According to Heffner, the affected employees have not yet been identified and no entire departments will be shut down.

The Mark Truck facility in Lower Macungie, which is an assembly plant, will not see any changes in the types of vehicles it produces.

“The Class 8 heavy-duty truck market is cyclical and we said several months ago that 2015 would be the peak year,” Heffner wrote in the email.

“We regret having to take this action, but we must adapt to market demand.”

The layoffs will begin Jan. 25, 2016, Heffner stated in the email.