1. Short title This Act shall be known as the Yolo Bypass System Improvement Act of 2020 . 2. Definitions In this Act: (1) Governor The term Governor means the Governor of the State of California, acting through the Director of the Department of Water Resources and the President of the Central Valley Flood Protection Board, or their designees. (2) Secretary The term Secretary means the Secretary of the Army, acting through the Chief of Engineers. (3) Yolo Bypass System The term Yolo Bypass System means the system of weirs, levees, bypass structures, lands and other measures in California’s Sacramento River Valley, extending from the Fremont Weir near Woodland, California, to the Sacramento River near Rio Vista, California, authorized pursuant to section 2 of the Act of March 1, 1917 (chapter 144; 39 Stat. 948). (4) Yolo Bypass and Cache Slough Partnership; Partnership The terms Yolo Bypass and Cache Slough Partnership and Partnership mean the group of parties to the Yolo Bypass and Cache Slough Memorandum of Understanding, effective May 2016, regarding collaboration and cooperation in the Yolo Bypass and Cache Slough Region. 3. Yolo Bypass System comprehensive study (a) Comprehensive study (1) In general The Secretary, in collaboration with the Governor and in coordination with the participants described in paragraph (2), shall conduct a comprehensive study of the Yolo Bypass System that addresses multiple water resources and related objectives within the Yolo Bypass System, including flood risk management, ecosystem restoration, water quality and supply, agriculture, and recreation. (2) Participants In carrying out paragraph (1), the Secretary and the Governor shall coordinate with— (A) the members of the Yolo Bypass and Cache Slough Partnership