California Code, Public Resources Code - PRC § 21101

In regard to any proposed federal project in this state which may have a significant effect on the environment and on which the state officially comments, the state officials responsible for such comments shall include in their report a detailed statement setting forth the matters specified in Section 21100 prior to transmitting the comments of the state to the federal government.  No report shall be transmitted to the federal government unless it includes such a detailed statement as to the matters specified in Section 21100.