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  
Enrolled
9/4/25  
Chaptered
10/1/25  

Caption

An act to amend Section 39735 of the Health and Safety Code, relating to greenhouse gases, and declaring the urgency thereof, to take effect immediately.

Impact

If enacted, AB 663 will significantly alter the regulatory landscape for the sale and use of refrigerants in California. By removing the exemption for reclaimed hydrofluorocarbons, the bill expands the scope of what constitutes a violation, potentially leading to increased penalties and compliance requirements for industries involved. One of the notable aspects of the bill is its assumption that local agencies and school districts will not be reimbursed for any costs incurred due to this mandate, which they typically would be under state law. This shift could both impact the financial liabilities of local agencies and challenge their compliance capacities.

Summary

Assembly Bill No. 663, sponsored by McKinnor, aims to amend the prohibition on the sale and distribution of hydrofluorocarbons (HFCs) in California, particularly focused on their global warming potential (GWP). The bill seeks to eliminate the existing exemption for reclaimed hydrofluorocarbons and proposes new exemptions for specific types of refrigerants. With commencement dates spanning from January 2025 to January 2033, the bill mandates lower global warming potential limits for HFCs to curtail their environmental impact, thus aligning with California's long-term climate goals.

Sentiment

The sentiment surrounding AB 663 appears to be predominantly supportive among environmental advocates who view the bill as a necessary step toward addressing climate change and reducing greenhouse gas emissions. However, there may be concerns from industries reliant on hydrofluorocarbons regarding the increase in compliance burdens and operational adjustments necessary to adapt to the new regulations. Overall, the bill reflects California's ambitious aims to lead in environmental stewardship while also sparking debate over the implications for the business sector.

Contention

A point of contention regarding the bill is its urgency status, which necessitates immediate implementation to promote the responsible reuse of reclaimed hydrofluorocarbons rapidly. Critics may argue that such rapid changes could destabilize existing supply chains and impose hefty compliance costs. Additionally, the elimination of the reimbursement requirement for local agencies may be seen as an undue burden, particularly if enforcement becomes a challenge due to limited resources. This illustrates the tension between urgent environmental reforms and the practicalities faced by local governance.

Companion Bills

No companion bills found.

Previously Filed As

CA SB28

An act to amend Sections 5361, 5971, 5975, 5976.5, 5977, 5977.1, 5977.3, 5977.4, 5978.1, 5979, 5982, 5983, and 5985 of, and to add Section 5988 to, the Welfare and Institutions Code, relating to mental health.

CA SB840

Greenhouse gases: Greenhouse Gas Reduction Fund: studies.

CA AB597

An act to amend Section 15027 of the Insurance Code, relating to insurance, and declaring the urgency thereof, to take effect immediately.

CA AB927

An act to amend Section 1240 of the Education Code, relating to public schools, and declaring the urgency thereof, to take effect immediately.

CA SB39

Cosmetic safety: vaginal suppositories.

CA AB2379

An act to add Section 1596.868 to the Health and Safety Code, relating to childcare, and declaring the urgency thereof, to take effect immediately.

CA SB251

An act relating to the payment of claims against the state, making an appropriation therefor, and declaring the urgency thereof, to take effect immediately.

CA AB2228

Roman Reed Spinal Cord Injury Research Act of 1999.

CA AB154

Greenhouse gases: climate corporate accountability: climate-related financial risk: regulations: California Environmental Quality Act exemption.

CA AB30

State Air Resources Board: gasoline specifications: ethanol blends.

Similar Bills

WA HB1462

Reducing greenhouse gas emissions associated with hydrofluorocarbons.

WA SB5438

Reducing greenhouse gas emissions associated with hydrofluorocarbons.