During the last several decades, numerous policies and programs intended to advance environmental goals have been formulated in the US by governmental bodies and implemented by businesses and nongovernmental organizations. This article forwards a multi-sectoral perspective that business and nonprofit organizations have also been significantly involved in environmental policy and program formulation, as well as implementation, and that governments have also fulfilled the latter strategic role in US environmental policy. In this article, nine US environmental initiatives are described and categorized according to which of the three sectors' organizations were significant formulators of the programs and which were significant implementors. Implications for future research include investigation of other environmental dyadic program combinations in addition to those presented, extension of the present analysis beyond dyads into environmental policy networks, inclusion of the strategic environmental program evaluation stage to complement formulation and implementation and exploration of effectiveness variables in cross-sectoral, inter-organizational collaborations. Implications for educators and practitioners are also presented. Copyright © 2002 John Wiley & Sons, Ltd. and ERP Environment.