ENERGY LAW AND DIRECT AIR CAPTURE CERTIFICATION METHODOLOGIES

1. Introduction

Direct Air Capture (DAC) Certification Methodologies are legal and technical systems used to determine whether carbon dioxide removed directly from ambient air qualifies as a credible, measurable and durable carbon removal. Certification is essential because capturing one tonne of CO₂ does not necessarily produce one tonne of net climate benefit. Electricity consumption, heat production, transportation, compression, storage leakage and other lifecycle emissions must also be considered.

Energy law therefore connects DAC certification with carbon markets, geological-storage regulation, renewable-energy procurement, taxation, monitoring, reporting and verification (MRV), environmental permitting and liability.

2. Core Certification Requirements

A credible DAC methodology generally evaluates several elements:

quantity of atmospheric CO₂ captured;

baseline emissions;

energy consumed during capture;

transportation and compression emissions;

permanence of geological storage;

leakage risks;

additionality;

lifecycle greenhouse-gas emissions; and

independent verification.

The European Union has created a particularly detailed framework. Regulation (EU) 2024/3012 establishes quality requirements concerning quantification, additionality, storage, liability and sustainability. Commission Delegated Regulation (EU) 2026/285, in force in 2026, establishes a specific certification methodology for Direct Air Capture with Carbon Storage (DACCS), including baseline calculations, associated greenhouse-gas emissions, monitoring, reporting and long-term storage requirements.

3. Measurement, Reporting and Verification

Certification must measure net carbon removal, rather than merely gross CO₂ capture. If a DAC plant removes 100,000 tonnes of atmospheric CO₂ but its electricity, heat, transport and storage operations create substantial emissions, those associated emissions must be deducted when determining climate benefit.

Independent verification is therefore central. EU-recognised certification systems must employ accredited or recognised certification bodies, maintain reliable registries and prevent double counting of removal certificates.

In the United States, Section 45Q carbon-capture rules similarly rely on rigorous documentation. Treasury regulations use lifecycle analysis in specified carbon-utilisation circumstances, with ISO 14040 and ISO 14044 standards informing lifecycle methodology. IRS Notice 2024-60 requires lifecycle reports to demonstrate a net reduction in CO₂-equivalent emissions compared with an appropriate comparison system.

4. Permanence and Geological Storage

DAC becomes a permanent removal mechanism when captured atmospheric CO₂ is securely stored for the long term. Certification therefore must address storage-site permits, monitoring, leakage detection and liability.

EU Regulation 2026/285 defines DACCS around capture from ambient air followed by transport and permanent geological storage at a site holding a valid permit under Directive 2009/31/EC.

Certification frameworks must also determine what happens if previously certified CO₂ escapes. Possible responses include certificate cancellation, replacement obligations, financial reserves or recapture of public incentives.

5. Case Law

Case Name/Citation: SandRidge Exploration & Production LLC v. OXY USA Inc., No. 4:15-cv-02103 (S.D. Tex. 2015)

Facts: SandRidge and OXY disputed contractual rights relating to federal Section 45Q tax credits generated through capture and secure geological storage of carbon dioxide.

Legal Issue: Whether contractual arrangements entitled SandRidge to a portion of benefits derived from Section 45Q sequestration credits.

Judgment: The federal court examined the contractual provisions against the statutory requirements governing qualified carbon sequestration.

Legal Principle/Ratio: Carbon-removal incentives depend upon satisfaction of statutory qualification requirements as well as contractual allocation of the resulting economic benefits.

Significance: DAC developers must ensure that ownership of certified removals, tax credits and environmental attributes is expressly allocated between capture, transport and storage participants.

Case Name/Citation: Deep South Center for Environmental Justice v. EPA, No. 24-60084 (5th Cir. 2025)

Facts: Environmental organizations challenged EPA's decision granting Louisiana primary enforcement authority over Class VI wells used for geological CO₂ sequestration.

Legal Issue: Whether the organizations had standing to challenge EPA's approval.

Judgment: The Fifth Circuit dismissed the petition because the organizations lacked standing.

Legal Principle/Ratio: Challenges to carbon-storage regulation remain subject to ordinary constitutional standing requirements.

Significance: The case illustrates that DAC certification depends not only on capture measurement but also on legally regulated Class VI geological-storage infrastructure.

Case Name/Citation: Anew Ventures II, LLC v. Terra Global Investment Management, LLC (Del. Super. Ct. 2025)

Facts: The dispute concerned transactions involving verified carbon credits whose commercial value depended on certification standards, project quality and registry recognition.

Legal Issue: The litigation addressed contractual rights involving environmental commodities certified under voluntary carbon-market standards.

Judgment: The court considered the role of certification standards and registries in determining the nature and value of the disputed credits.

Legal Principle/Ratio: Carbon credits are legally and commercially dependent on the certification methodology and contractual framework defining them.

Significance: DAC removal certificates likewise require transparent standards and traceable registries to preserve environmental and economic integrity.

6. Conclusion

Direct Air Capture Certification Methodologies transform physical CO₂ removal into a legally credible environmental asset. Effective certification requires accurate measurement, lifecycle accounting, additionality, independent verification, permanent storage, leakage liability and prevention of double counting. As DAC markets expand, rigorous certification will be essential to ensure that claimed removals represent genuine and durable atmospheric carbon reductions.