EU Regulation 2024/1787 on methane emissions in the energy sector came into force in August 2024, and since then, pipeline operators across Europe have been working to understand exactly what it requires and when. If you operate gas transmission or distribution infrastructure, the compliance clock is already ticking. This article breaks down the key deadlines, survey requirements, and practical steps for existing pipeline operators navigating the regulation.
What is the EU methane regulation and who does it affect?
The EU Methane Regulation (Regulation 2024/1787) is a binding piece of EU legislation that sets out mandatory requirements for measuring, reporting, and reducing methane emissions from the energy sector. It covers the full natural gas supply chain, from production and transmission through to distribution and storage.
The regulation applies to a wide range of operators, including:
- Transmission System Operators (TSOs) responsible for high-pressure gas pipelines
- Distribution network operators managing lower-pressure infrastructure
- Storage facility operators
- LNG terminal operators
- Importers of crude oil, natural gas, and coal into the EU
The regulation is not limited to new infrastructure. Existing pipelines, compressor stations, measurement and control stations, and other above-ground assets are all in scope. For most operators, this means implementing structured Leak Detection and Repair (LDAR) programmes across assets that may never previously have been subject to formal methane monitoring obligations.
A central principle of the regulation is the shift away from estimate-based emission accounting toward source-level reporting. Rather than applying generic emission factors across a network, operators must identify and measure emissions at individual sources. This is the foundation for achieving OGMP 2.0 Level 5, the gold standard for methane reporting that all EU operators must reach by August 2028.
From when does the EU methane regulation apply to existing pipelines?
The regulation entered into force on 4 August 2024, and obligations for existing pipeline operators began almost immediately. The compliance timeline is staged, with specific deadlines running through to 2030.
Here is how the key dates break down:
- August 2024: Regulation comes into force. Operators must begin planning their LDAR programmes.
- 2025: The first MRV (Monitoring, Reporting and Verification) reporting cycle begins. Operators were required to set up and initiate an LDAR plan and conduct their first Type-2 LDAR survey by August 2025.
- January 2027: Importers must demonstrate that any contracts concluded or renewed on or after 4 August 2024 cover only crude oil or natural gas subject to MRV mechanisms equivalent to EU requirements.
- August 2028: All assets in the EU, both operated and non-operated, must achieve OGMP 2.0 Level 5 reporting.
- August 2030: Importers must demonstrate that imported crude oil, natural gas, or coal meets a methane intensity limit set by the European Commission.
For existing pipelines specifically, the most immediate and operationally significant deadline was August 2025: the requirement to have an LDAR plan in place and a first Type-2 survey completed. In 2026, operators who have not yet met this requirement are already behind schedule and face increasing compliance risk.
What are the LDAR survey requirements for existing pipelines?
The EU Methane Regulation requires operators of underground pipelines and above-ground infrastructure to establish and maintain formal LDAR programmes. These programmes must cover all relevant assets, including compressor stations, tanks, and measurement and control stations, not just the buried pipeline itself.
The regulation defines a two-step LDAR methodology for underground infrastructure:
- Stage 1 (surface screening): Detection at the ground-atmosphere interface to identify areas where emissions may be present. This step determines whether a signal warrants further investigation.
- Stage 2 (source confirmation): Direct measurement at the source after ground access has been opened, typically through bar-hole drilling or excavation. The repair obligation under Article 14(8) is triggered at this stage when the 1,000 ppm or 5 g/h threshold is confirmed.
The regulation distinguishes between two levels of survey technology: Type-1 and Type-2. The type of technology used directly determines the required inspection interval. Operators using Type-2 certified technology, which meets the 5 g/h and 1,000 ppm detection threshold, are permitted to inspect underground pipelines once every three years. Less sensitive technology requires more frequent surveys, which can significantly increase the overall cost of compliance.
All identified leaks, regardless of size, must be recorded, and those records must be retained for at least ten years. This record-keeping obligation applies from the very first survey.
It is also worth noting that the specific detection thresholds for aerial Stage 1 inspection are still being finalised through a forthcoming Implementing Act. Until that act is adopted, Article 14(7) of the regulation sets the interim standard: operators must use the best available technologies and the best available detection techniques. Technologies holding recognised third-party certification, such as DVGW G465-4-5, already satisfy this requirement.
How does airborne methane detection meet Type 2 survey requirements?
Airborne methane detection is well suited to Stage 1 surface screening under the two-step LDAR methodology. A helicopter-based system can cover large sections of pipeline network quickly, delivering GPS-tagged anomaly reports that direct ground teams to specific locations for Stage 2 follow-up. This dramatically reduces the total route length requiring on-foot inspection, focusing resources only on areas where a signal has been identified.
For airborne detection to qualify as a Type-2 survey, the technology must reliably detect emissions at or below the 1,000 ppm and 5 g/h thresholds. This is more demanding than it might first appear. Research by METEC (Methane Emissions Technology Evaluation Center) and the Engler-Bunte Institute demonstrates that underground gas plumes widen before reaching the surface and do not always emerge directly above the leak. Reliable detection therefore requires a grid of measurement points covering at least 10 metres either side of the pipeline centreline, with spatial resolution better than 2 metres per point. A system that produces only a string of measurements along the pipeline itself cannot reliably detect real leaks.
Per-point sensitivity must also be meaningfully better than the 1,000 ppm threshold to ensure reliable detection under all real-world conditions, not just ideal laboratory settings. Independent verification studies suggest that reliable detection at 1,000 ppm requires the system to be capable of detecting concentrations of around 300 ppm or lower.
You can learn more about how airborne inspection fits into a broader compliance strategy on our pipeline inspection services page.
What happens if pipeline operators miss the compliance deadlines?
The EU Methane Regulation is binding legislation, and member states are responsible for establishing enforcement mechanisms, including penalties for non-compliance. While the specific penalty structures vary by jurisdiction, the consequences of missing compliance deadlines can be significant.
Operators who have not completed their first Type-2 LDAR survey are already in breach of the August 2025 deadline. The practical risks include:
- Regulatory penalties: National competent authorities can impose fines and enforcement notices on operators who fail to meet their LDAR obligations.
- Reputational risk: With methane emissions increasingly scrutinised by regulators, investors, and the public, non-compliance can damage an operator’s standing.
- Operational exposure: Undetected leaks represent both a safety risk and a direct commercial loss through gas escaping the network.
- Compounding obligations: Missing early deadlines does not remove later ones. Operators who delay now still face the August 2028 OGMP 2.0 Level 5 target and must work backwards from that date to build a credible compliance programme.
The most prudent course for operators who have not yet completed their first survey is to act quickly. The regulation’s requirements do not diminish over time, and the further behind an operator falls, the more compressed the timeline becomes for meeting the 2028 Level 5 reporting standard.
How should operators start preparing for EU methane regulation compliance?
For operators still in the early stages of compliance planning, the priority is to move from awareness to action. Here is a practical framework for getting started:
- Establish your LDAR plan: Document the scope of your network, identify all assets in scope under the regulation, and define your inspection methodology. This plan is a regulatory requirement and also the foundation for everything that follows.
- Conduct your first Type-2 survey: If this has not yet been completed, it is the most urgent practical step. Choose technology that meets the Type-2 threshold so that you benefit from the three-year inspection interval rather than being locked into more frequent surveys.
- Set up your record-keeping system: All identified leaks must be recorded regardless of size, and records must be retained for ten years. Building this system early avoids scrambling to reconstruct data later.
- Plan toward OGMP 2.0 Level 5: The August 2028 deadline for Level 5 reporting requires source-level measurement across all operated and non-operated assets. Operators should assess the gap between their current reporting approach and Level 5 requirements now, while there is still time to close it systematically.
- Monitor the Implementing Act: The forthcoming Implementing Act will set specific detection thresholds for aerial Stage 1 inspection. Staying informed about the consultation process and likely outcomes helps operators make technology decisions that will remain compliant once the act is adopted.
Operators who are uncertain about where to start can find useful orientation by reviewing the ADLARES overview of airborne methane detection services, which sets out how aerial inspection fits within the regulatory framework.
How ADLARES helps with EU methane regulation compliance for existing pipelines
We at ADLARES have been providing airborne methane detection services to gas grid operators across Europe since 2008, and our CHARM technology is purpose-built for the compliance requirements that the EU Methane Regulation now formalises. Here is what we bring to operators navigating these obligations:
- Type-2 certified detection: CHARM is certified under DVGW G465-4-5 and meets the 5 g/h and 1,000 ppm detection threshold required for Type-2 LDAR surveys, enabling the three-year inspection interval for underground pipelines.
- Proven sensitivity headroom: DVGW testing independently verified that CHARM reliably detects surface concentrations of 300 ppm in a 2×2 m area, three times more sensitive than the regulatory threshold, ensuring reliable performance under all real-world conditions.
- Full grid coverage: Our helicopter-based system captures 1,000 measurement points per second across an adjustable scan swath of 10 to 30 metres, meeting the spatial resolution requirements for reliable detection of underground plumes.
- Rapid network coverage: Flying at speeds of up to 180 km/h at altitudes of 100 to 150 metres, we can survey large pipeline networks efficiently, reducing the time and cost of compliance.
- Secure reporting platform: Survey results are delivered via a secure Web GIS platform, accessible on desktop and mobile, giving your team the GPS-tagged anomaly data needed to prioritise Stage 2 ground investigation and meet your record-keeping obligations.
- Over 250,000 km of experience: We have inspected pipelines for gas grid operators across Europe, giving us deep familiarity with the operational and regulatory contexts our clients work in.
If you are working to meet your LDAR obligations under the EU Methane Regulation and want to understand how airborne inspection can fit into your compliance programme, explore our services or get in touch with our team to discuss your network’s specific requirements.