London, 21 October 2025. The Environmental Industries Association (EIA) is calling for urgent attention to safe and compliant decommissioning of liquid fuel storage tanks as the UK accelerates its transition to low-carbon heating. With the Government banning the sale of fossil-fuelled boilers from 2026, an estimated three million domestic oil tanks and hundreds of thousands of commercial tanks will need to be decommissioned over the next decade.
Industry forecasts suggest that up to 300,000 domestic tanks per year could require removal between 2026 and 2035, alongside thousands of large-scale commercial installations. This represents one of the most significant infrastructure changes in the heating sector in modern times.
Compliance and Safety Are Critical
Under the Control of Pollution (Oil Storage) (England) Regulations 2001, the Environmental Protection Act 1990, and related legislation, improper tank removal can lead to severe environmental contamination and legal penalties. Domestic tanks—typically 1,000 to 5,000 litres and often made from polyethylene—require different handling compared to commercial tanks, which can hold several million litres and involve complex pipework and bunded steel construction.
Key Requirements Include:
- Risk Assessment and Method Statement (RAMS) before work begins.
- Removal of residual fuel by a licensed waste carrier with an ADR-certified driver.
- Issuance of Gas-Free Certificates after degassing tanks to below 10% of the Lower Explosive Limit (LEL).
- Proper disposal of contaminated polyethylene tanks at licensed hazardous waste facilities.
- Full documentation, including Duty of Care Waste Transfer Notes, Hot Work Permits, and Completion Certificates.
Bruce Woodal, Founding Member of the Fuel Experts Association, said:
“The scale of tank decommissioning over the next decade is unprecedented. Every uplift, every cut, every disposal must be done by the book. This isn’t just about compliance—it’s about protecting our environment and ensuring the safety of those carrying out the work. Cutting corners is not an option.”
Michael Lunn, CEO of the Environmental Industries Association, added:
“As the UK accelerates towards Net Zero, the environmental sector has a critical role in managing the legacy of fossil fuel infrastructure. The EIA is committed to supporting best practice, providing guidance, and working with regulators to ensure that tank decommissioning is carried out safely, legally, and sustainably.”
For more information on technical guidance, including OFTEC TI/133 and TI/134, and the full list of applicable legislation see below.
Documentation and Record Keeping
The following documentation should be maintained for each decommissioning project:
- Risk Assessment and Method Statement (RAMS)
• Permit to Work (including Hot Work and Confined Space permits)
• Gas-Free Certificates (valid for 24 hours)
• Duty of Care Waste Transfer Notes / Hazardous Waste Consignment Notes
• ADR Driver and Vehicle Certification
• Insurance and Lifting Plan (where applicable)
• Site Clearance / Completion Certificate
Applicable Legislation and Standards
- Control of Pollution (Oil Storage) (England) Regulations 2001
• Environmental Protection Act 1990
• Health and Safety at Work Act 1974
• Dangerous Substances and Explosive Atmospheres Regulations (DSEAR) 2002
• Confined Spaces Regulations 1997
• BS EN 60079-10-1: Explosive Atmospheres
• OFTEC Technical Information TI/133 – Decommissioning of Oil Storage Tanks
• OFTEC Technical Information TI/134 – Removal of Domestic Oil Storage Tanks
• BS 7121 – Code of Practice for Safe Use of Cranes