Cosumnes American Bear Yuba (CABY) is a collaborative planning effort that adopted an Integrated Regional Water Management Plan (IRWMP) in December 2006, in response to the passage of Proposition 50. Diverse stakeholder involvement was a priority from the beginning, and CABY comprises more than 30 organizations, representing water supply, conservation, recreation, agriculture, and community interests, as well as federal and local government.

CABY functions as a vehicle to bring funding into the region, as well as bringing diverse stakeholders together. Proposition 50 and the IRWMP served as a catalyst for the creation of the collaborative group, but the projects, initiatives, and partnerships continue to expand.

Priorities are water quality (maintaining and restoring), water quantity (for both people and the environment, in CABY and statewide), and environmental quality (restoration and preservation).

In 2008 and beyond, CABY will improve water management in the Sierra foothills by increasing communication and coordination and seeking funding to implement projects throughout the region.