In Support of this measure: 

 

Total amount of reported contributions to this measure: $18,424,113* 

Individual Ballot Measure Committees Formed for this Measure

Committee ID**

Committee Name

Total Reported Contributions

1353866

California Building Industry Association Issues Committee Supporting Proposition 45

$744,113

1484853

Yes on 45 - Building a More Affordable California, a Coalition of Water, Affordable Housing, Clean Energy, Small Business, Healthcare & Community Leaders

$17,680,000

*Through 08/02/2026. 

**The law also requires ballot measure committees that raise $1 million or more to report the Top 10 Contributors who have donated at least $10,000 to the committee.

 

In Opposition to this measure: 

 

Total amount of reported contributions to this measure: $9,204,857* 

Individual Ballot Measure Committees Formed for this Measure

Committee ID**

Committee Name

Total Reported Contributions

1493079

Campaign for People Over Polluters, No on Prop. 45, sponsored by Environmental & Healthcare Organizations

$205,000

1492264

No on Prop 45, sponsored by Labor, Health and Environmental Organizations

$8,999,857

*Through 08/02/2026. 

**The law also requires ballot measure committees that raise $1 million or more to report the Top 10 Contributors who have donated at least $10,000 to the committee.