Type at least 2 characters to search 2,939 ADR 2025 dangerous goods entries
Data: UNECE ADR 2025, licensed from Labeline.com. 2,939 entries covering all hazard classes. Last verified April 2026.
For operational use, always verify against the current ADR in force.
What Is ADR?
ADR (Accord européen relatif au transport international des marchandises Dangereuses par Route) is the European Agreement concerning the International Carriage of Dangerous Goods by Road. It is a United Nations treaty administered by UNECE (the United Nations Economic Commission for Europe) that sets out the rules for transporting hazardous materials by road across 54 contracting parties — covering the EU, UK, and beyond.
ADR is updated every two years. The current edition, ADR 2025, entered into force on 1 January 2025 with a six-month transitional period for full implementation.
The agreement covers classification of dangerous goods, packaging and labelling requirements, vehicle construction and equipment standards, documentation (including the transport document and instructions in writing), and training requirements for drivers and other personnel involved in the carriage of dangerous goods.
Understanding ADR Table A
Table A of Chapter 3.2 is the core reference in ADR — the complete list of dangerous goods authorised for international road transport. Each entry includes:
| Field | What it means |
|---|---|
| UN Number | Four-digit identifier assigned by the UN Committee of Experts (e.g. UN1203 for petrol) |
| Proper Shipping Name (PSN) | The official name used on transport documents. Must be used exactly as published — not trade names or abbreviations |
| Class | The primary hazard class (1–9). Determines placarding, segregation, and handling rules |
| Classification Code | A letter/number code indicating the specific hazard within the class (e.g. FC = flammable corrosive) |
| Packing Group | I (great danger), II (medium danger), or III (minor danger). Not all classes use packing groups |
| Labels | The hazard labels required on packages — may include subsidiary hazard labels |
| Tunnel Restriction Code | Determines which road tunnels the goods may pass through. Tunnel categories range from A (least restrictive — most DG permitted) to E (most restrictive — almost no DG permitted). A restriction code of (D/E) means the goods are prohibited from tunnels of categories D and E. |
| Transport Category | Used for calculating the 1.1.3.6 exemption threshold — categories 0–4 |
ADR Hazard Classes
| Class | Description | Examples |
|---|---|---|
| 1 | Explosives | Ammunition, fireworks, detonators |
| 2 | Gases | Propane, oxygen, aerosols |
| 3 | Flammable liquids | Petrol, diesel, paint, adhesives |
| 4.1 | Flammable solids | Matches, sulphur, metal powders |
| 4.2 | Spontaneously combustible | White phosphorus, activated carbon |
| 4.3 | Dangerous when wet | Sodium, lithium, calcium carbide |
| 5.1 | Oxidising substances | Hydrogen peroxide, ammonium nitrate |
| 5.2 | Organic peroxides | Benzoyl peroxide |
| 6.1 | Toxic substances | Pesticides, cyanides, methanol |
| 6.2 | Infectious substances | Clinical waste, biological cultures |
| 7 | Radioactive material | Uranium, medical isotopes |
| 8 | Corrosive substances | Sulphuric acid, sodium hydroxide, batteries |
| 9 | Miscellaneous dangerous goods | Lithium batteries, environmentally hazardous substances, vehicles |
Transport Categories and the 1.1.3.6 Exemption
Every dangerous substance in ADR Table A is assigned a transport category from 0 to 4. These categories are the foundation of the ADR 1.1.3.6 small load exemption, which allows certain quantities of dangerous goods to be carried with reduced requirements. Understanding transport categories is essential for any freight operator moving mixed loads that might include small quantities of hazardous materials.
| Category | Points Multiplier | Max Quantity Under Exemption | Typical Substances |
|---|---|---|---|
| 0 | No exemption | 0 — never exempt | Explosives (1.1A, 1.2B), self-reactive substances |
| 1 | 50 | 20 kg / 20 L | Most Class 1 articles, radioactive material, infectious substances |
| 2 | 3 | 333 kg / 333 L | Petrol (UN1203), many flammable liquids PG II, toxic substances PG I |
| 3 | 1 | 1,000 kg / 1,000 L | Diesel (UN1202), most PG III flammable liquids, corrosives PG II-III |
| 4 | 0 | Unlimited | Lithium batteries (UN3481), environmentally hazardous UN3082, aerosols UN1950 |
The exemption calculation works by multiplying the quantity of each substance (in kg or litres) by the transport category multiplier, then summing all the points. If the total is 1,000 or below, the load qualifies for the 1.1.3.6 exemption. This exemption reduces requirements around vehicle placarding, written instructions, driver training certification (ADR licence), and equipment. It does not exempt the consignor from proper packaging, labelling, and documentation.
For example, carrying 200 litres of petrol (transport category 2, multiplier 3) gives 600 points. Adding 100 kg of a category 3 substance (multiplier 1) adds 100 points, for a total of 700 — still under 1,000, so the exemption applies. Use our ADR 1.1.3.6 calculator to check your mixed loads instantly.
Packing Groups Explained
Packing groups indicate the degree of danger presented by a substance and determine the performance standard required of its packaging. ADR assigns three packing groups:
Packing Group I (PG I) — substances presenting high danger. Packaging must meet the most stringent performance tests. Examples include carbon disulphide (Class 3, extremely flammable) and hydrogen cyanide (Class 6.1, highly toxic). PG I substances have lower quantity thresholds for exemptions and more restrictive transport conditions.
Packing Group II (PG II) — substances presenting medium danger. This is the most common packing group in everyday freight. Petrol (UN1203), many industrial solvents, and common corrosives like hydrochloric acid fall into PG II.
Packing Group III (PG III) — substances presenting low danger. Diesel fuel (UN1202), many paints and adhesives, and dilute acid solutions are typically PG III. These substances still require proper dangerous goods packaging and labelling, but the packaging performance standards are less demanding.
Not all hazard classes use packing groups. Classes 1 (explosives), 2 (gases), 5.2 (organic peroxides), 6.2 (infectious substances), and 7 (radioactive) have their own classification systems. When reading ADR Table A, an empty packing group column indicates that the class uses a different categorisation method.
How to Read ADR Hazard Labels
ADR hazard labels are the diamond-shaped warning labels affixed to packages, containers, and vehicles carrying dangerous goods. Each label corresponds to a hazard class or division and follows a standardised design specified in ADR Chapter 5.2.2. The labels use a consistent system of colours, symbols, and numbers to communicate hazard information to handlers, emergency responders, and other road users.
Every package must carry the primary hazard label for its class. If the substance has subsidiary risks (for example, a substance that is both flammable and toxic), additional subsidiary hazard labels must also be applied. The class number appears in the bottom corner of the label. A flame symbol indicates flammability (Classes 3, 4), a skull and crossbones indicates toxicity (Class 6.1), a test tube with corrosion indicates corrosive substances (Class 8), and a trefoil symbol indicates radioactive material (Class 7).
In addition to class labels, packages must display the UN number of the substance, preceded by the letters “UN”. The UN number is shown in black digits at least 12 mm high (6 mm for packages of 5 litres or 5 kg or less). On vehicles and containers, orange-coloured plates display the hazard identification number (Kemler code) in the top half and the UN number in the bottom half. For example, a tanker carrying petrol would show “33” over “1203” on its orange plate, where “33” indicates a highly flammable liquid.
Tunnel Restriction Codes Explained
| Code | Meaning |
|---|---|
| A | Passage prohibited through Category A tunnels only — very few tunnels apply this restriction |
| B | Prohibited through tunnels of categories B, C, D, and E |
| C | Prohibited through tunnels of categories C, D, and E |
| D | Prohibited through tunnels of categories D and E |
| E | Prohibited through Category E tunnels only — only the most restrictive tunnels |
| — (dash) | No tunnel restriction |
Tunnel codes appear in parentheses in ADR Table A, e.g. (D/E). Where two codes are shown separated by a slash, the first applies to bulk/tank transport and the second to packages.
Variant Entries
Some UN numbers have multiple entries in Table A — these are called variants. A single UN number may appear several times with different proper shipping names, hazard divisions, or packing groups. For example, UN0015 (Ammunition, Smoke) has three entries for different explosive divisions.
FreightUtils preserves all variant entries from the official ADR 2025 Table A. When you look up a UN number with multiple variants, all entries are displayed so you can identify the correct classification for your specific substance or article.
About This Data
This ADR dataset contains 2,939 entries covering 2,347 unique UN numbers, licensed from Labeline.com, sourced from the official UNECE ADR 2025 publication (ECE/TRANS/352). The dataset includes all additions and corrections in the 2025 edition.
For operational decisions — including classification, packaging, labelling, and routing — always refer to the full ADR text and consult your Dangerous Goods Safety Adviser (DGSA) where required. This tool is a reference aid, not a substitute for the complete regulation.
Frequently Asked Questions
How often is ADR updated?
What are the 11 new UN numbers in ADR 2025?
What is a Dangerous Goods Safety Adviser (DGSA)?
Does ADR apply in the UK after Brexit?
What is the 1.1.3.6 exemption?
Can I use this data via API?
/api/adr. No authentication required. Query by UN number (?un=1203) or search by name (?q=petrol). Full documentation at /api-docs.Learn More
ADR reference data only. Classification is the consignor's legal responsibility. Consult a DGSA for compliance decisions.