The Wagner Act, officially known as the National Labor Relations Act of 1935, is a key piece of legislation in the United States that protects the rights of workers to organize and engage in collective bargaining. It established the National Labor Relations Board (NLRB), which oversees labor relations and ensures fair practices between employers and employees. The act prohibits employers from interfering with workers' rights to form unions and engage in collective activities. It also provides workers with the legal framework to address grievances and negotiate better working conditions, wages, and benefits, thereby strengthening the labor movement in the U.S.