Since the introduction of the Employment Equity Act in 1986, organizations in Canada's federal jurisdiction have been required to adopt Employment Equity Programs (EEPs) designed to increase the presence of four traditionally under-represented groups: women, aboriginal peoples, disabled persons, and visible minorities. This article reports the results of a study that identifies the type of EEPs organizations subject to the Act have adopted, examines the impact that EEPs have had on hiring, and identifies what makes an EEP effective. Results suggest that organizations that adopt EEPs that are more formalized, more comprehensive, and better supported are more likely to hire a representative number of designated group members. Implications for practitioners and policy makers are discussed.