This paper explores trade union collective voice as a mechanism for worker participation in training decision making. New Zealand is an example of a liberal market economy (LME) with relatively weak regulatory pressure on employers to engage in training. Consequently, drivers such as trade union collective voice could fill an important role in workers securing support for training from their employers. The paper argues that given the reduced power of unions in many LMEs workers potentially face a twofold challenge: the first to secure an entitlement to training and the second to have any further participation in training decision making. Using the example of New Zealand, the paper examines whether collective bargaining secures entitlement to training. Then, employing the categorization of approaches to workforce development as either expansive or restrictive, it investigates the nature of that entitlement. Following this, the paper reports on dialogue with trade unions through which a more nuanced picture emerges of collective voice and the challenges to worker participation in training decision making. Finally, it reflects on the role collective voice could play in worker access to training.