Tesla’s Union Shirt Ban Tests NLRB’s Framework in Fifth Circuit

Tesla Inc. will try to convince a federal appeals court to overturn a National Labor Relations Board decision and permit the company to ban union shirts on its electric car assembly line.

Tesla’s counsel will appear at the US Court of Appeals for the Fifth Circuit on Wednesday to argue that the company can legally prohibit workers from wearing black United Auto Workers shirts because the company gave production workers the option of putting union stickers on their black shirts emblazoned with the car maker’s logo.

The case gives the New Orleans-based Fifth Circuit the opportunity to weigh Tesla’s attempt ...