L. MACUNGIE TWP., Pa. - Mack Trucks said it is planning to lay off about 305 employees at its Lower Macungie Township manufacturing plant.

The layoffs will be effective after the close of business on Feb. 28, said Christopher Heffner, the company's public relations manager.

The company will be able to offer voluntary layoffs to about 75 of the employees.

"We regret having to take this action, but we operate in a cyclical market, and after two years of extremely high volumes, we have to adapt to reduced market demand," Heffner said. He said the company expects the total North American truck market to be down nearly 30%, or about 100,000 trucks, in 2020.

Company and union representatives will provide outplacement support meetings for the affected employees. The company will provide employees with information about the support available through the Private Industry Council and Career Link, Heffner said.