Regenerative Thermal Oxidizer Manufacturer Serving California

California Air Permitting: How CPI Supports Your Compliance Process

CPI designs and builds oxidizer systems — we are not a permitting firm, and every California facility's permit obligations depend on details specific to that site. Engaging an air permitting professional who is familiar not just with federal requirements, but with the specific local air district rules that apply to your facility, is strongly recommended.

Here's how CPI fits into that process:

1. Technical data your permit application will need. Emission rates, destruction/removal efficiency, stack parameters, fuel usage, and control technology specifications, delivered as part of every proposal.
2. A design matched to your compliance target. Our applications engineering team coordinates with the parties responsible for your permitting so the oxidizer is sized to meet your local district's destruction efficiency and reporting requirements from day one.
3. Ongoing support once you're operating. Equipment performance data for emissions reporting or agency inspections, whenever your compliance team needs it.
4. A track record California regulators already recognize. CPI oxidizer systems are permitted and operating across California, helping our customers stay in compliance with their permit obligations.

California Air Permitting Rules for Oxidizers

• Permitting structure: Unlike most states, California has no single state permitting agency. Stationary sources like oxidizers are permitted by one of 35 local Air Pollution Control Districts or Air Quality Management Districts, each with its own rules
• Statewide oversight: California Air Resources Board (CARB) — coordinates statewide but does not itself issue stationary-source permits
• EPA region: U.S. EPA Region 9
• Largest districts: South Coast AQMD — most of the Los Angeles Basin; Bay Area AQMD — greater San Francisco Bay Area
• More detail: EPA's overview of Clean Air Act permitting in California

Supporting Your Project Team

Whether your California project runs through an outside environmental consultant, an in-house EHS group, or your engineering team, CPI works alongside them, offering:

• BACT/MACT analysis support, with the technical data needed to weigh control technology options.
• A real installation history in California that regulators have already reviewed and accepted.
• Turn-key project support spanning evaluation through commissioning, including installation estimates.
• A 24-hour Technical Service Group standing by well after startup.

Environmental consultants can find CPI's dedicated resources, including project support details and client examples, here: Environmental Consultant Resources →

"If you buy it (from CPI), turn it on, and it works...has been my experience." — Project Engineer

Aftermarket Service & Support — California

CPI's aftermarket service is performed by direct CPI employees — not third-party contractors — so California facilities get factory-trained technicians who know CPI equipment inside and out.

• Service performed by CPI's own technicians
• Preventive maintenance
• Emergency service, including 24/7 phone support
• Annual inspections and testing support, helping facilities meet inspection or maintenance requirements that may be specified in their air permit

Schedule California Service →

Frequently Asked Questions

Can CPI manufacture a regenerative thermal oxidizer for a California facility?

Yes. CPI designs and manufactures custom RTOs, catalytic oxidizers, and thermal oxidizers for California manufacturers, built on successful implementations throughout California and nationwide.

Are there CPI oxidizers already running in California today?

Yes — CPI oxidizer systems are installed and operating at California facilities, permitted by their local air district. That in-state history means California regulators are already familiar with how CPI designs and documents its systems.

Which agency actually issues my facility's air permit in California?

It depends entirely on your location — California has no single statewide permitting agency for stationary sources. Your local Air Pollution Control District or Air Quality Management District (such as South Coast AQMD or Bay Area AQMD) is the actual permitting authority; CARB provides oversight but doesn't issue permits itself. Your permitting consultant, EHS team, or engineering group can confirm which district covers your facility.

Will CPI service equipment it didn't originally manufacture?

Yes. CPI services most makes and models of regenerative thermal oxidizers, catalytic oxidizers, and thermal oxidizers, not only the systems we built ourselves.

Does CPI manage local air district permitting on our behalf?

No. CPI is not a permitting firm. We recommend confirming your specific requirements with an environmental consultant, EHS resource, or engineering team - CPI's role is supplying the oxidizer information that process depends on.

Is CPI a resource for environmental consultants working on California projects?

Yes. CPI works closely with environmental consultants on BACT/MACT analysis and project support, backed by a proven track record of oxidizers already operating in California.

Explore More

See where CPI provides oxidizer aftermarket service by state: CPI Oxidizer Resource Center — All Locations

CPI's Core Technology:
Regenerative Thermal Oxidizers | Thermal Oxidizers | Catalytic Oxidizers

For Environmental Consultants, EHS & Engineering Teams:
Environmental Consultant Resources & Support →