Substantial legal questions loom in the trial court as to whether the high-speed rail project the California High-Speed Rail Authority (Authority) seeks to build is the project approved by the voters in 2008. Substantial financial and environmental questions remain to be answered by the Authority in the final funding plan the voters required for each corridor or usable segment of the project. (Sts. & Hy. Code, § 2704.08, subd. (d).)1
But those questions are not before us in these validation and mandamus proceedings.
The scope of our decision is quite narrow. Applying time-honored principles of statutory construction, separation of powers, and the availability of extraordinary writ relief, we conclude:
1. Contrary to the trial court’s determination, the High-Speed Passenger Train Finance Committee properly found that issuance of bonds for the project was necessary or desirable.
2. The preliminary section 2704.08, subdivision © funding plan was intended to provide guidance to the Legislature in acting on the Authority’s appropriation request. Because the Legislature appropriated bond proceeds following receipt of the preliminary funding plan approved by the Authority, the preliminary funding plan has served its purpose. A writ of mandamus will not lie to compel the idle act of rescinding and redoing it.
We therefore will issue a peremptory writ of mandate directing the trial court to enter judgment validating the authorization of the bond issuance for purposes of the 2008 voter approved Safe, Reliable High-Speed Passenger Train Bond Act. (Bond Act)