The National Labor Relations Board has certified the vote by workers at the Volkswagen plant in Chattanooga, Tennessee to join the UAW.

The unionization vote at the Volkswagen plant in Tennessee has been certified by the National Labor Relations Board (NLRB), according to a Tuesday announcement from the manufacturer and the United Auto Workers (UAW).

Volkswagen has accepted workers' vote to unionize at its plant in Chattanooga, Tennessee. Why it matters: The factory's employees overwhelmingly voted to join the United Auto Workers, making them the first non-Detroit Three automotive assembly plant in the South to be unionized.

Volkswagen accepted the results of the union election at its Chattanooga, Tennessee, plant in April, with workers voting overwhelmingly to join the United Auto Workers.