Cal. Water Code § 141.5

The department shall proceed with the construction of the South Delta Improvements Program, but shall not commence the operational phase of the program until the director certifies, in writing, to the Legislature that the department has completed the operational studies of the project and that the environmental review required by the California Environmental Quality Act (Division 13 (commencing with Section 21000) of the Public Resources Code) includes a comparison between the implementation of the program and the maintenance of current operations.