California 2025-2026 Regular Session

California Assembly Bill AB663

Introduced
2/14/25  
Refer
3/3/25  
Report Pass
3/28/25  
Refer
4/1/25  
Report Pass
4/8/25  
Refer
4/8/25  
Report Pass
4/23/25  
Engrossed
5/12/25  
Refer
5/13/25  
Refer
5/21/25  
Report Pass
6/18/25  
Refer
6/18/25  
Enrolled
9/4/25  

Caption

Hydrofluorocarbon gases: sale and distribution prohibition: exemptions.

Impact

By redefining the parameters under which hydrofluorocarbons can be sold, AB 663 will potentially influence various sectors reliant on these gases, particularly refrigeration and air conditioning industries. The bill is projected to impose additional regulatory requirements on these businesses while also necessitating a shift toward alternatives with lower global warming potential. The California Constitution stipulates that the state does not need to reimburse local agencies for costs incurred due to new prohibitions created by this legislation, implying a conscious reliance on local compliance without additional funding support.

Summary

Assembly Bill 663, introduced by Assembly Member McKinnor, seeks to amend Section 39735 of the Health and Safety Code regarding hydrofluorocarbon gases. The bill prohibits the sale and distribution of hydrofluorocarbons that exceed defined global warming potential limits starting January 1, 2025, with a phased reduction of allowable levels through 2033. One of the significant changes is the elimination of the exemption for reclaimed hydrofluorocarbons, which expands the scope of the legal prohibition and could result in new criminal liabilities for violators. This measure is seen as part of California's broader strategy to combat climate change by reducing greenhouse gas emissions and adhering to international climate agreements.

Sentiment

Responses to AB 663 have been mixed with strong support from environmental advocates concerned with climate change, celebrating the bill as a step toward increased environmental protections. Critics, however, express concerns over the potential economic impact, particularly on industries and businesses that utilize hydrofluorocarbons. The tensions highlight an ongoing conflict between environmental goals and economic impacts, with advocates arguing for more regulation while opponents call for more flexibility and support for affected industries.

Contention

Notably, the bill's provisions will become effective immediately as an urgency statute, reflecting the urgency of addressing climate change and promoting the reuse of reclaimed hydrofluorocarbons. With certain exemptions still in place for specific applications, the implementation of these regulations may lead to further debates about their practicality, especially given the need for businesses to adapt to new regulatory frameworks while managing potential cost implications associated with compliance.

Companion Bills

No companion bills found.

Previously Filed As

CA AB2870

Low Carbon Fuel Standard regulations: carbon intensity calculation: avoided methane emissions from livestock manure: prohibition.

CA SB261

Greenhouse gases: climate-related financial risk.

CA AB1250

Department of Transportation: low-carbon materials.

CA AB2276

Forestry: timber harvesting plans: exemptions.

CA AB9

Greenhouse gases: market-based compliance mechanism.

CA AB660

Food and beverage products: labeling: quality dates, safety dates, and sell-by dates.

CA AB2316

Pupil nutrition: substances: prohibition.

CA AB43

Greenhouse gas emissions: building materials: embodied carbon trading system.

CA AB2061

Sales and Use Tax: exemptions: zero-emission public transportation ferries.

CA SB308

Net zero greenhouse gas emissions goal: carbon dioxide removal: regulations.

Similar Bills

CA SB1206

Hydrofluorocarbon gases: sale or distribution.

CA SB1013

Fluorinated refrigerants.

HI SB2753

Relating To Building Codes.

HI HB2654

Relating To Building Codes.