Who Are We?
The Western Sustainability and Pollution Prevention Network (WSPPN^TM) is a strategic alliance involving local, state, federal and tribal pollution prevention (P2) programs throughout EPA Region 9, which includes the states of California, Nevada, Arizona, Hawaii, the Tribal Lands and the Trust Territories of Guam and American Samoa. WRPPN was established in 1997 by the U.S. Environmental Protection Agency to improve communication and information dissemination among network members to maximize efficiency of P2 implementation.

WSPPN is a proud member of the Pollution Prevention Resource Exchange (P2Rx^TM), a national network of eight centers providing pollution prevention information, networking opportunities and other services to States, local governments and technical assistance providers in their region.