Refers especially to the Taft-Hartley Act (1947) a federal law, amending the National Labor Relations Act (Wagner Act), 1935, which, among other changes, defined and made illegal a number of unfair labor practices by unions. It preserved the guarantee of the right of workers to organize and bargain collectively with their employers and retained the definition of unfair labor practices as applied to employers. The act does not apply to employees in a business or industry where a labor dispute would not affect interstate commerce. Other major exclusions are: employees subject to Railway Labor Act, agricultural workers, government employees, domestic servants, and supervisors. Amended by Labor-Management Reporting and Disclosure Act of 1959. See NATIONAL LABOR RELATIONS ACT, NATIONAL LABOR RELATIONS BOARD, UNFAIR LABOR PRACTICE , SECTION 14 (B), LABOR MANAGEMENT RELATIONS ACT, 1947