National Labor Relations Board files complaint against VW Chattanooga

New cars await shipment Thursday, Aug. 21, 2014, at the Chattanooga Volkswagen plant in Chattanooga, Tenn.

The National Labor Relations Board has filed a complaint against Volkswagen related to the automaker's refusal to bargain with the United Auto Workers at its Chattanooga factory.

The complaint involves health insurance benefits for VW plant workers and a change in work hours for some skilled trades employees, who voted in December 2015 to align with the UAW.

The NLRB said the insurance matter and work hours are "mandatory subjects for the purposes of collective bargaining."

The complaint said VW raised the issues "without prior notice to the union and without affording the union an opportunity to bargain with respondent with respect to this conduct and the effects of this conduct."

However, a Chattanooga VW plant spokesman said it's unable to bargain with UAW Local 42 until the U.S. Court of Appeals rules on its challenge to the legitimacy of the union's bargaining unit at the factory.