WEDNESDAY, MARCH 12 - FRIDAY, MARCH 14. The United States Environmental Protection Agency (EPA) Regions 9 and 10, in partnership with the Green Transportation Summit and Expo, Columbia-Willamette Clean Cities, Sacramento Clean Cities, East Bay Clean Cities, Long Beach Clean Cities, Workforce Training Associates, California Air Resources Board (CARB), and the South Coast Air Quality Management District (SCAQMD) is proud to host the 20th Anniversary West Coast Collaborative Partners Meeting (WCCPM).