The proposition for HSR requires the California High Speed Rail Authority to issue those reports with oversight from the Office of the Inspector General. https://hsr.ca.gov/wp-content/uploads/2026/07/OIG-HSR-Review...

If your actual point is that it is costing too much and taking too long, you would be interested in Proposition 45, which limits the ability of local governments and individuals to endlessly delay the project. The LAO's analysis of that proposition is in https://lao.ca.gov/BallotAnalysis/Proposition?number=45&year...