 It was largely unsuccessful in this task; conflict ended only after the Taft-Hartley Act largely outlawed jurisdictional strikes.The BCTD coordinates the activity of building and construction trade unions belonging to the AFL-CIO by establishing jurisdictional rules, coordinating how work is assigned at construction sites, mediating jurisdictional and work assignment disputes, and coordinating interaction between the AFL-CIO's construction unions and employers.It also coordinates the efforts of local unions in the building trades, including contract negotiations with employer organizations and apprenticeship and training programs.