With the publication of the 17th edition, the casebook is now current through the end of 2020. Nevertheless, the Supplement remains an important teaching tool because it contains the principal portions of federal labor statutes, relevant parts of federal antitrust and employment law statutes, a model Collective Bargaining Agreement, and National Labor Relations Board forms. Moreover, for ease of reference and to facilitate student understanding of the impact of amendments, the National Labor Relations Act is reproduced in three typefaces, reflecting portions contained in the original Wagner Act, as well as those added by the Taft-Hartley and Landrum-Griffin Acts. Deleted matter resulting from these amendments is set out in brackets. Students will find the Supplement to be a useful resource both as they work their way through the cases and note materials in the casebook and during class discussions.