Increasing employee motivation for environmental endeavors continues to be poorly understood. Recently, Govindarajulu and Daily (2004) presented a comprehensive theoretical framework emphasizing the integration of management commitment, empowerment,rewards, feedback and review, and environmental performance. However, no published studies to date have empirically validated the framework. Hence the aim of this research is to address this void. In addition the mediation effects of employee attitudes in the relationship between the HR factors and environmental performance is also explored. The research findings will benefit companies in their effort to maximize employee motivation for successful ISO14001 EMS implementation. Moreover the findings will be of value to future researchers exploring the management practices-environmental performance link.