Many transport companies avoid dangerous goods because they think they’re impossible to manage: a certified driver, an approved vehicle, a safety adviser, orange plates. In reality, a significant share of ADR shipments can be carried out without any of these — provided you know how to do the math.
Below: the 9 hazard classes, the 1,000-point rule that exempts you from almost all obligations, the difference from limited quantities, and what you need when the shipment exceeds the threshold.
What ADR means
ADR is the acronym of the European Agreement concerning the International Carriage of Dangerous Goods by Road, concluded in Geneva in 1957. It is updated every two years and sets out how dangerous substances are classified, packaged, labeled and transported.
In Romania, its application is governed by Government Decision (HG) no. 1175/2007, by Order of the Minister of Transport no. 2134/2005 (RNTR 3) and by Ministry of Economy orders no. 2113/2013 and no. 2737/2012.
The basic rule: if the goods have a UN number and a hazard class, the shipment falls under ADR. What changes depending on the quantity is how much of ADR applies to you.
The 9 ADR hazard classes
Classification follows the type of risk, not the type of product. The same substance can change class depending on its concentration or physical state.
| Class | Name | Common examples |
|---|---|---|
| 1 | Explosive substances and articles | Ammunition, fireworks, airbags, detonators |
| 2.1 | Flammable gases | Butane, propane, LPG, flammable aerosols |
| 2.2 | Non-flammable, non-toxic gases | Nitrogen, compressed oxygen, carbon dioxide |
| 2.3 | Toxic gases | Chlorine, ammonia, carbon monoxide |
| 3 | Flammable liquids | Gasoline, diesel, paints, solvents, alcohol |
| 4.1 | Flammable solids, self-reactive substances, desensitized explosives | Matches, sulfur, celluloid |
| 4.2 | Substances liable to spontaneous combustion | White phosphorus, oil-soaked rags |
| 4.3 | Substances which, in contact with water, emit flammable gases | Calcium carbide, sodium metal |
| 5.1 | Oxidizing substances | Ammonium nitrate, fertilizers, hydrogen peroxide |
| 5.2 | Organic peroxides | Resin hardeners, catalysts |
| 6.1 | Toxic substances | Pesticides, cyanides, arsenic |
| 6.2 | Infectious substances | Medical samples, hospital waste |
| 7 | Radioactive material | Medical isotopes, measuring equipment |
| 8 | Corrosive substances | Sulfuric acid, caustic soda, wet-cell batteries |
| 9 | Miscellaneous dangerous substances and articles | Lithium batteries, asbestos, airbags, dry ice |
Two classes cause the most surprises in practice. Class 9 covers lithium batteries — so any shipment of electronics, power tools or electric vehicles. And Class 3 includes paints and solvents, which often travel as ordinary goods in groupage loads.
The 1,000-point rule (1.1.3.6)
This is the part most companies don’t know about, and it changes the economics of a shipment. Section 1.1.3.6 of ADR provides for a partial exemption: below a certain quantity threshold, the shipment escapes the most expensive obligations.
Each dangerous good is assigned to a transport category, from 0 to 4. Each category has a corresponding multiplication factor:
| Transport category | Maximum quantity per transport unit | Multiplication factor |
|---|---|---|
| 0 | 0 — not eligible for the exemption | — |
| 1 | 20 kg or liters | × 50 |
| 2 | 333 kg or liters | × 3 |
| 3 | 1,000 kg or liters | × 1 |
| 4 | unlimited | × 0 |
The calculation is simple: multiply the quantity in each category by its factor and add up the results. If the total stays below 1,000, the shipment qualifies for the partial exemption.
Calculation example
A mixed shipment on the same transport unit:
- 300 liters of goods from category 3 → 300 × 1 = 300 points
- 150 kilograms from category 2 → 150 × 3 = 450 points
- 4 kilograms from category 1 → 4 × 50 = 200 points
Total: 950 points. The shipment is below the threshold. If we added just 2 more kilograms from category 1, we would reach 1,050 and lose the exemption completely — for the entire shipment, not just the excess.
The threshold applies per transport unit, not per order or per customer. In a groupage load with goods from several shippers, the points add up — and responsibility for the calculation stays with the carrier.
What you gain under 1,000 points
The partial exemption removes the heaviest obligations: orange plates, ADR vehicle approval and specific safety equipment. However, the basic requirements still apply — correct packaging and labeling, the transport document, a fire extinguisher and training in accordance with Chapter 1.3 for the staff involved.
In other words: “under 1,000 points” doesn’t mean “no ADR.” It means simplified ADR.
Limited quantities (LQ) — a different exemption
It’s often confused with the 1,000-point rule, but it works on a different principle. Limited quantities, governed by Chapter 3.4, concern goods packed in small receptacles, below a limit set for each UN number.
- 1.1.3.6 looks at the total quantity on the vehicle, regardless of packaging.
- LQ (3.4) looks at the size of the individual package. Goods packed in limited quantities are marked with the black-and-white diamond symbol, and the shipment is exempt from most ADR provisions.
An important practical detail: goods packed in limited quantities do not count toward the 1,000-point calculation. A truck can carry a considerable volume of LQ goods without affecting the point total.
Even so, both regimes keep the requirement for 1.3 training of staff involved in shipping, loading and transport. It is the most frequently ignored requirement and the easiest to check during an inspection.
What you need for full ADR
When a shipment exceeds the thresholds, the full set of obligations kicks in:
The driver’s ADR certificate
It is obtained after a course and an exam, is valid for 5 years and is recognized in all ADR contracting states. There is a basic course plus additional specializations for tankers, for Class 1 (explosives) and for Class 7 (radioactive material).
The issuance fee is 250 lei, the same as for the certificate of professional competence. Details of the procedure are in the guide on ARR certificates.
Vehicle approval at RAR
Vehicles of type EX/II, EX/III, FL, AT and MEMU require an ADR approval certificate issued by the Romanian Automotive Register (RAR). Approval is carried out annually, at RAR offices, based on the conformity documentation issued by the bodies designated by the Ministry of Economy.
It’s one more annual deadline to keep track of, alongside certified true copy and the periodic technical inspection.
The safety adviser
The requirement is broader than most companies think. At least one safety adviser must be appointed by any undertaking that packs, fills, loads, ships, carries or unloads dangerous goods — so not just hauliers, but also shippers and warehouses.
Their duties include monitoring compliance with the regulations, advising the company, investigating accidents and incidents, and preparing an annual report for management. Certification is obtained in one of four specializations: explosives, gases, radioactive material, or liquids and solids.
Tunnel restrictions
Shipments that exceed the 1,000-point threshold are subject to tunnel restrictions. European tunnels are classified into categories A to E, and each good has a restriction code that states which categories it cannot pass through.
The consequence is about planning, not paperwork: a route that looks optimal on the map can become prohibited because of a single tunnel, and the detour adds hundreds of kilometers that must be factored into the price-per-kilometer calculation. Restrictions are checked before confirming the trip, not on the road.
The transport document
For ADR goods, the CMR consignment note must include, in the box for the nature of the goods, the UN proper shipping name and UN number, along with the hazard class and packing group.
A generic description such as “chemical products” is not enough and is one of the most frequent irregularities found during roadside inspections.
Frequently asked questions
What does ADR mean?
ADR is the European Agreement concerning the International Carriage of Dangerous Goods by Road, concluded in Geneva in 1957 and updated every two years. In Romania, it is applied through Government Decision (HG) no. 1175/2007 and Order of the Minister of Transport no. 2134/2005 (RNTR 3).
How many ADR classes are there?
There are 9 hazard classes, some of which have subclasses: Class 2 (gases) has 2.1, 2.2 and 2.3; Class 4 has 4.1, 4.2 and 4.3; Class 5 has 5.1 and 5.2; Class 6 has 6.1 and 6.2. Classification follows the type of risk, not the type of product.
How are the 1,000 ADR points calculated?
Multiply the quantity in each transport category by the corresponding factor — category 1 by 50, category 2 by 3, category 3 by 1, category 4 by 0 — and add up the results. If the total stays below 1,000, the shipment qualifies for the partial exemption under 1.1.3.6.
Can you carry ADR goods without a driver certificate?
Yes, below the 1,000-point threshold set out in 1.1.3.6, as well as for goods packed in limited quantities. However, training in accordance with Chapter 1.3, correct packaging and labeling, the transport document and the fire extinguisher remain mandatory.
What is the difference between 1.1.3.6 and limited quantities?
Rule 1.1.3.6 refers to the total quantity on the transport unit, regardless of packaging. Limited quantities, governed by Chapter 3.4, refer to the size of the individual package. Goods packed in limited quantities do not count toward the 1,000-point calculation.
Who needs a safety adviser?
Any undertaking that packs, fills, loads, ships, carries or unloads dangerous goods — so not only hauliers, but also shippers and warehouses. The adviser prepares an annual report for the company’s management.
How much does the ADR certificate cost and how long is it valid?
The issuance fee is 250 lei, and the certificate is valid for 5 years and recognized in all ADR contracting states. There is a basic course plus specializations for tankers, Class 1 and Class 7.
Which vehicles need ADR approval at RAR?
Vehicles of type EX/II, EX/III, FL, AT and MEMU require an ADR approval certificate issued by the Romanian Automotive Register (RAR). Approval is carried out annually, at RAR offices.
