The American League of Professional Baseball Clubs & Association of National Baseball League Umpires
National Labor Relations Board
180 N.L.R.B. 190 (1969)
The Association of National Baseball League Umpires (plaintiff) petitioned the NLRB for recognition as an appropriate collective-bargaining unit against the American League of Professional Baseball Clubs (defendant), which argued that baseball's existing internal dispute-resolution system (the Uniform Umpires Contract, Major League Agreement, and Major League Rules, culminating in Commissioner arbitration) meant labor disputes would not substantially affect commerce, and that Congress's tolerance of baseball's self-regulation counseled against NLRB jurisdiction.
Whether the National Labor Relations Act allows the NLRB to decline jurisdiction over labor disputes between employers and employees in an industry that does not substantially affect commerce.