CARB Greenhouse Gas Emissions Verification Service.
If you are required to have to your greenhouse gas emissions verified under CGWSA, LRQA can help with our accredited ARB verification services.
Learn about Certifying to the California Air Resources Board (CARB)
CARB Greenhouse Gas Emissions Verification Service
The California Air Resources Board, also referred to as CARB or ARB, is the agency responsible for air quality in the California state government.
If your company or facility is required to have to your greenhouse gas (GHG) emissions verified under the California Global Warming Solutions Act of 2006 (AB32), LRQA can help with our accredited ARB verification services.
As one of the first verification bodies accredited by the California Air Resource Board, LRQA is a recognized verifier for the ARB mandatory greenhouse gas (GHG) emissions reporting program, and we continue to be one of the most active verification bodies under the ARB program.
When you choose LRQA, you’re choosing ARB lead verifiers who hold sector-specific accreditation for all ARB sectors including general stationary combustion, natural gas and electricity transactions, oil and gas systems, and process emissions.
Why choose LRQA?
- Business Assurance – our focus is delivering verification services that ultimately help your business reduce their reputational and regulatory risks.
- Technical Expertise and Experience – we’re one of the longest-standing accredited greenhouse gas verification bodies in the United States, and as an international leader in voluntary mandatory markets, we consistently verify over 300 million metric tonnes of GHG emissions each year.
- Thought leadership -- we’re a leading contributor to the development of environmental and climate change standards around the world, including the TCR Electric Power Sector Protocol, ISO 14001 and the Voluntary Carbon Standard, and we’re dedicated to sharing the knowledge gained from our experience in this area
- Acting with Integrity – our strict conflict of interest and quality control procedures ensure that the verification services we provide are fair, accurate, impartial, and stand up to close scrutiny.
- Help Beyond CARB Verification – if your company is also reporting emissions to a voluntary program such as the CDP (formerly known as the Carbon Disclosure Program), is subject to international regulations, or you’re interested in emissions reduction projects, ISO 14064 or TCR verification, LRQA can help.
Case studies
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Serco's Journey with LRQA: Strengthening Business Resilience
Case Study
Learn how Serco partnered with LRQA to strengthen resilience, optimise operations, and ensure compliance. Explore their journey and...
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Repsol ISO 14067 carbon footprint case study
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Discover how Repsol’s multidisciplinary team worked together to calculate the carbon footprint of High Purity Liquefied Gases (HPLGs),...
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Thrust Carbon ISO 14083 Verification Case study
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Award-winning green tech start-up, Thrust Carbon, explains what it means to be among the first organisations to have...
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Trelleborg Marine Engineering - ISO 50001 certification case study
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Read more on how Trelleborg Marine Engineering (Qingdao) Co Ltd improved energy management and reduced emissions with ISO...
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Mott MacDonald Carbon footprint case study
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Over eight years ago Mott MacDonald started its verification journey and has been at the forefront of delivering...
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Château Troplong Mondot obtains GES verification from LRQA
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Read the case study detailing LRQA's GES verification for Château Troplong Mondot, where LRQA ensured standards were in...
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INSIGHTS
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Scaling Supply Chain Impact | Dr Siva Pariti
Article
Dr Siva Pariti shares insights on improving supply chain impact through integrated approaches to carbon, chemicals and water,...
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Climate ambition isn’t enough: the rise of evidence-led decarbonisation...
Article
Supply chain decarbonisation is entering a new phase. LRQA’s Risk Outlook 2026 shows why the challenge is no...
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Driving transparency in clean transport: Delivering climate performance
Article
Clear rules, better data and credible assurance are now essential for turning transport’s climate ambition into real progress...
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EVENTS
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Energy Taiwan & Net-Zero Taiwan 2026
Event
Meet RESET Carbon at Energy Taiwan and Net-Zero Taiwan 2026 to explore practical decarbonization, carbon management and net-zero...
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LRQA at WindEnergy Hamburg 2026 – Your wind energy...
Event
Meet LRQA at WindEnergy Hamburg from 22–25 September 2026. Discover our certification, inspection and advisory services for wind...
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LRQA at Nuclear Power Expo 2026
Event
LRQA will be attending Nuclear Power Expo 2026 to showcase its services and solutions for the nuclear sector....
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