California 2025-2026 Regular Session

California Assembly Bill AB28

Introduced
12/2/24  
Refer
3/24/25  
Report Pass
3/24/25  
Refer
3/25/25  
Report Pass
5/5/25  
Refer
5/7/25  
Refer
5/14/25  
Report Pass
5/23/25  
Engrossed
5/29/25  
Refer
5/29/25  
Refer
6/11/25  
Report Pass
7/3/25  
Refer
7/3/25  
Report Pass
7/18/25  
Refer
7/18/25  
Refer
8/18/25  

Caption

Solid waste landfills: subsurface temperatures.

Impact

The provisions outlined in AB 28 will significantly modify how landfill operators manage methane emissions. If gas temperatures exceed 131 degrees Fahrenheit for extended periods, operators must create corrective action plans in collaboration with relevant agencies. Penalties for non-compliance can reach up to $1,000,000 per week if certain critical temperature thresholds are breached, emphasizing the importance of adhering to safety and operational guidelines. This legislative action reflects a proactive approach to mitigating risks associated with landfill operations and aligns with California's broader climate goals.

Summary

Assembly Bill 28, introduced by Assembly Member Schiavo, aims to regulate municipal solid waste landfills (MSW) by mandating stringent monitoring of landfill gas temperatures. The bill seeks to enhance the existing regulations set forth by the California Integrated Waste Management Act of 1989. Specifically, it requires operators to closely observe gas temperatures at their sites and take corrective actions if temperatures rise above specific thresholds, thereby addressing potential environmental and public health risks associated with elevated landfill gas temperatures.

Sentiment

Overall, the sentiment surrounding AB 28 is largely positive, particularly among environmental advocates who see it as a crucial step toward increasing accountability and minimizing the harmful effects of landfill emissions. Supporters highlight the necessity for rigorous monitoring and the need for protective measures for communities adjacent to landfills. However, some industry stakeholders may express concerns regarding the financial and operational burdens this bill could impose on landfill operators, raising questions about the balance between regulatory oversight and business feasibility.

Contention

One notable point of contention is the bill's stringent penalties and the potential for them to cause financial strain on smaller waste management operations. The requirement for immediate corrective action upon exceeding temperature thresholds could be viewed as excessive by some stakeholders, who may argue that such drastic measures could inadvertently impact essential waste management services. Furthermore, there may be debates about the practicality and effectiveness of the regulations proposed, especially in terms of implementation and compliance monitoring.

Companion Bills

No companion bills found.

Previously Filed As

CA AB1534

Methane emissions: municipal solid waste landfills: remote sensing data.

CA AB2514

Solid waste: organic waste: diversion: biomethane: biosolids.

CA AB2902

Solid waste: reduction and recycling.

CA SB972

Methane emissions: organic waste: landfills.

CA SB1208

Waste discharge permits: landfills.

CA SB778

Excavations: subsurface installations.

CA AB1716

Hazardous wastes and materials: certified unified program agencies.

CA AB895

Solid waste: management.

CA SB1143

Paint products: stewardship program.

CA SB303

Solid waste: Plastic Pollution Prevention and Packaging Producer Responsibility Act.

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