It’s Time to Build an Affordable California.
More than five decades ago, the Golden State enacted a sweeping law governing the review of public works projects – a law that promised “productive harmony to fulfill the social and economic requirements of present and future generations.” But that promise is broken. California’s future is being held back by its past.

- Reduce the cost of living.
- Speed up construction of essential projects.
- Create tens of thousands of good-paying jobs.
- Streamline reviews and eliminate costly delays.
- Curb frivolous lawsuits that block essential projects.
- Protect California’s strong environmental, worker and tribal cultural protections
In the News
Proposition 45 Doesn’t Apply to Data Centers
The Three Lies Prop 45 Opponents Keep Telling and Telling
Healthcare Leaders Unite in Support of Prop 45
Voters Strongly Support CalChamber’s Prop 45
Proposition 45 Qualifies for November 2026 Ballot as Momentum Builds for Landmark Cost-of-Living Measure
100+ Organizations Join Coalition Backing YES on Prop 45
Affordable CA Campaign Submits Nearly 1 Million Voter Signatures to Qualify for November 2026 Ballot
Clean Energy Leaders Unite Behind Building an Affordable California Act
Assemblymember Buffy Wicks Endorses ‘Building an Affordable California’ Act
Building an Affordable California Act Hits Key 25% Signature Threshold Ahead of Schedule as Diverse Coalition Lines Up to Support Measure
CalChamber’s CEQA Reform: Boosting California’s Economy and State Budget
Let’s Build an Affordable California
CalChamber Files ‘Building an Affordable California’ Ballot Initiative
Building a More Affordable California

Let's Get Busy
We’ve fallen too far behind in building the infrastructure that our communities desperately need. And the projects that are built become so expensive that they raise costs for all of us.
Proposition 45
The Building an Affordable California Act (Affordable CA) has officially qualified for the November 2026 statewide ballot. Read about Proposition 45.
Get the Facts
Proposition 45 modernizes the state’s outdated approval process to so California can catch up and build essential projects faster and more affordably.