Diesel is important for the daily operations of farms and fleets across Ireland. But storing large quantities of diesel on-site comes with rules. Whether you’re fueling tractors, HGVs, generators or construction machinery, knowing the law is not optional.
This article outlines diesel storage regulations in Ireland and explains what you, as a farmer or fleet owner, need to know to stay compliant and safe.
Why Storage Rules Matter?
Diesel is a hazardous substance. Wrongful storage can lead to environmental pollution, explosion hazards, and financial penalties.
The rules are there to:
- Prevent leaks and spills
- Conserve water resources and land
- Reduce fire risks
- Protect the public and employees
If you store diesel without compliance with the rules, you’re not just endangering your business, you’re violating an offense.
Who Regulates Diesel Storage in Ireland?
Several agencies are tasked with enforcing diesel storage regulations, some of which are;
- EPA (Environmental Protection Agency) – Oversees environmental risks like soil and water contamination.
- HSA (Health and Safety Authority) – Addresses fire protection, workplace hazards, and safe tank handling.
What Kind of Diesel Are We Talking About?
In Ireland, there are three main types of diesel:
- Marked Gas Oil (MGO), or “Green Diesel” – Used for agricultural and construction equipment. Lower taxed but only legal for non-road use.
- Road Diesel (DERV) – Used for HGVs, vans, and road vehicles.
- H.V.O (Hydrotreated Vegetable Oil) – Low carbon renewable fuel for HGVs, vans and road vehicles.
Regardless of the type, both must be stored responsibly.
Storage Tank Requirements
Diesel tanks used on farms and commercial sites must meet certain legal standards.
What you’ll need
- Bunds (Secondary Containment): – Tanks must be within a bund or double-skinned. The bund must be of a capacity of at least 110% of the tank capacity.
- Secure Positioning: Tanks must be positioned on solid ground, not near drains, water courses, and flood areas.
- Protection from Damage: Fit barriers where tanks are near moving plants or vehicles.
- Proper Labelling: Proper labelling of contents and hazard warning on all tanks.
- Locks and Access Control: Lock access points to stop unauthorised use or theft.
- Ventilation and Overflow Prevention: Ensure air vents are functioning and there is a procedure in place to prevent overfilling.
- Spill Control and Emergency Response: You are legally required to have a plan in place for handling leaks or spills.
This includes:
- Having spill kits on site
- Trained staff or family members on how to use them
- Knowing who to call in case of a major leak (EPA, Fire Services)
- Don’t wait until something goes wrong to figure this out.
Fuel Transfer: What the Law Says
If you’re transferring diesel from one tank to another, or using mobile bowsers:
- Use hoses and nozzles that meet Irish and EU standards
- Never fill tanks beyond 95% capacity
- Always monitor transfers — never leave them unattended
Record Keeping
Good record keeping isn’t just for peace of mind — it’s required.
Keep track of:
- Fuel deliveries
- Tank inspections and maintenance
- Any spill incidents or repairs
- Safety training or staff inductions
If you’re ever audited or inspected, these records show you’re taking your responsibilities seriously.
Common Mistakes to Avoid
- Storing diesel in old or unapproved tanks
- Positioning tanks too close to drains or watercourses
- Ignoring bund requirements
- Overfilling tanks
- Skipping inspections and maintenance
All of these may lead to stiff penalties or even worse.
Ask yourself:
- Is my tank compliant and safe?
- Would I be able to clean up a spill today?
- Would I pass inspection if someone came tomorrow?
If you said no, it’s time to fix it.
Still not certain what suits your setup? Call your local council, EPA, or fuel supplier. Getting it now avoids serious problems later on.