Employees at Con-way Freight’s Portland, Ore., maintenance facility voted to reject representation by the Teamsters Union.

This is the second decision against union representation at a Con-way facility in the last two months, following a similar rejection at a maintenance facility in Hayward, Calif. In that case it was the International Association of Machinists and Aerospace Workers Union which was voted down.

For the past year, similar votes have taken place across the nation at individual Con-way facilities, in some cases resulting in a vote in favor of the union. Con-way Freight is not the only fleet where unionization efforts have occured, with companies such as Fed-Ex Freight and drayage carriers servicing the ports also hosting votes.

“I want to thank our employees for the thorough and careful consideration they gave to this matter and for voting to remain union-free,” said Joseph Dagnese, president of Con-way Freight. “We continue to believe that our best path forward is one where we are focused on our customers, working together directly with our employees to deliver a superior service experience, without the interference of a third party.”

Con-way Freight does not have a contract with a union at any of its U.S. locations, the company says.