November 3, 2026 general election
California Proposition 45; what a yes or no vote means.
Creates new deadlines and court procedures for environmental review of certain housing, transportation, water and health projects.
Bottom line
What Proposition 45 does
Creates new deadlines and court procedures for environmental review of certain housing, transportation, water and health projects.
The measure is a initiative statute placed on the ballot by petition signatures. Its official title is “Modifies Environmental Review for Certain Projects.”
A yes vote
Yes means
Covered projects could use the new review and court procedures, including tighter time limits.
A no vote
No means
Covered projects would continue using the existing environmental-review and court procedures.
State estimate
What it could cost
Initial government costs are likely in the high tens of millions of dollars and could exceed $100 million annually; fees would cover part of the cost, while longer-term effects are uncertain.
That is the fiscal effect summarized from the state voter guide. Estimates describe likely government effects; they are not a promise of an exact future result.
Primary record
Read the complete state analysis
This explainer is a starting point. The Secretary of State’s guide carries the impartial analysis, fiscal estimate, arguments for and against the measure, rebuttals and proposed law. Read that record before making a decision.
Open the official Proposition 45 guide