Among labor laws in developed countries, National Labor Relations Act of USA in 1935 was the first statute with the combination of procedural and substantial rules in an attempt to intervene in collective agreement. In 1999, UK introduced the Employment Relations Act which combines voluntary recognition with compulsory one as a new approach for union recognition. In December 2008, Taiwan modified Collective Agreement Law by introducing procedural rules into collective bargaining, which is the latest collective bargaining law with substantial and procedural rules. This study found that the extent to which the procedural rules of Collective Agreement Law perfectly work with its remedial and punishment mechanisms would be critical to the success of the new Collective Agreement Law of Taiwan.