Dangerous Goods Labelling under ADR 2025: Symbols, Duties, Responsibilities

The labelling of dangerous goods in Germany follows the ADR Agreement in the 2025 version, valid since 1 January 2025. Chapter 5.2 regulates packages, while Chapter 5.3 covers vehicles and containers. Violations of labelling obligations are punishable under § 37 of the German Dangerous Goods Transportation Act (GGBefG) with fines of up to 50,000 Euro, and in conjunction with § 26 GGBefG, may also entail criminal liability.

Anyone who ships, transports, packs, or loads dangerous goods must be familiar with labelling requirements. Obligations are divided among consignors, loaders, fillers, carriers, and consignees, and are coordinated in practice by the dangerous goods safety advisor pursuant to the Dangerous Goods Safety Adviser Ordinance (GbV). This article details which symbols are mandatory, who bears which responsibility, what documentation regulatory authorities expect, and how CIVAC, as a compliance platform and officer-as-a-service provider, organises these statutory duties in an audit-proof manner.

The ADR (Accord européen relatif au transport international des marchandises Dangereuses par Route) is multilateral treaty law, implemented in Germany through the Dangerous Goods Transportation Act (GGBefG) and the Ordinance on the Transport of Dangerous Goods by Road, Rail, and Inland Waterways (GGVSEB).

ADR 2025 entered into force on 1 January 2025 and is applicable during a transition period until 30 June 2025 alongside the 2023 edition. Key modifications concern the classification of lithium batteries (UN 3536, UN 3556 et seq.) and supplementary special provisions for polymer granules.

Chapter 3.2 of the ADR contains Table A (Dangerous Goods List), which specifies UN numbers, hazard classes, packing groups, and special provisions. Every substance is assigned an unambiguous UN number that serves as the foundation for all mandatory labelling.

Chapter 5.2 governs the labelling of packages, including UN numbers, official proper shipping names, danger labels, environmentally hazardous substance marks, and orientation arrows for liquids. Chapter 5.3 regulates placards, orange-coloured plates, and marks for vehicles and containers.

Modal regulations supplement road transport rules: air transport (IATA-DGR), maritime transport (IMDG Code), and rail transport (RID). For multimodal shipments, companies must comply with the strictest applicable standard, which is typically IATA or the IMDG Code.

Appointing a dangerous goods safety advisor pursuant to § 1 GbV is mandatory as soon as transport volume exceeds the exemptions defined in ADR subsection 1.1.3.6.

Every package must display the UN number preceded by the letters 'UN', written in durable and legible lettering. The characters must be at least 12 mm high for packages exceeding a gross mass of 30 kg. The official proper shipping name according to Table A must accompany the UN number, usually in the language of the origin country plus English, French, or German.

Danger labels corresponding to Models 1 through 9 show the primary hazard pictogram and hazard class number. Labels must measure at least 100 x 100 mm, featuring a line 5 mm inside the edge and the class number in the bottom corner. Additional danger labels for subsidiary risks are displayed without class numbers.

The environmentally hazardous substance mark (dead fish and tree symbol) is mandatory for substances classified as environmentally hazardous under section 2.2.9.1.10. The mark must measure at least 100 x 100 mm, except for small quantities under 5 litres or 5 kg.

For liquid substances, orientation arrows (two black or red arrows on a white background) must be affixed on two opposite vertical sides. They indicate the correct upright position and prevent accidental spillage.

Simplified marks apply to exempted quantities under Special Provisions for Limited Quantities (LQ) and Excepted Quantities (EQ). These marks remain statutory requirements; assuming that limited quantities require no labelling is a frequent compliance mistake.

The packer bears primary responsibility for correct package marking under ADR subsection 1.4.3.2. When contract packing is used, these duties must be formally defined in writing.

Placards (large labels) mirror danger labels but must measure at least 250 x 250 mm. They must be affixed to both sides and the rear of tank vehicles, tank containers, and bulk containers. For packaged goods transport above specified thresholds, placards or plain orange plates must be displayed.

Orange-coloured plates measure 400 x 300 mm with a 15 mm black border. On tank vehicles, tank containers, and bulk vehicles, the upper half displays the hazard identification number (Kemler code) and the lower half displays the UN number. Both numbers must be in black digits, 100 mm high with a line stroke of 15 mm.

The Kemler code identifies hazard properties: the first digit indicates the primary hazard (3 = flammable, 8 = corrosive, 6 = toxic), while doubling a digit intensifies the hazard (33 = highly flammable). An 'X' preceding the code signifies a dangerous reaction with water.

Tunnel restriction codes pursuant to ADR section 1.9.5 apply to passages through road tunnels categorized as B, C, D, or E. The applicable code appears in Column 15 of Table A and must be recorded in the transport document.

Labelling must be displayed prior to commencement of transport and remain in place until unloading is complete. Once unloaded and cleaned, placards and orange plates must be removed or covered to prevent false hazard assumptions.

The carrier is responsible for vehicle marking under ADR subsection 1.4.2.2, while the loader verifies compliance prior to departure pursuant to subsection 1.4.3.1.1.

ADR subsection 1.4 clearly divides safety obligations among economic operators: consignor (1.4.2.1), carrier (1.4.2.2), consignee (1.4.2.3), loader (1.4.3.1), packer (1.4.3.2), filler (1.4.3.3), tank-container operator (1.4.3.4), and unloader (1.4.3.7). Each role has a distinct list of statutory verification duties.

The consignor is responsible for accurate substance classification, issuing the transport document, ensuring proper packaging, and affixing package marks. The transport document required under Chapter 5.4 is typically prepared on a CMR waybill or separate transport documentation.

The loader must verify package labelling, vehicle suitability, and driver certification (ADR training certificate) prior to loading. Loading must not proceed if deficiencies are identified.

The carrier verifies placards, orange plates, and complete transport documentation under subsection 1.4.2.2. The carrier must appoint a dangerous goods safety advisor under § 1 GbV whenever exemption limits are exceeded.

The dangerous goods safety advisor advises executive management, conducts employee training, investigates safety incidents, and drafts the mandatory annual report pursuant to § 8 GbV. The appointment must be in writing, training is mandatory, and the qualification certificate is valid for five years.

A signed, archived, and audit-ready appointment certificate is essential. Without a documented chain of evidence, regulatory inspections risk escalating into supervisory liability proceedings under § 130 OWiG.

ADR Chapter 1.3 obligates every person involved in the transport of dangerous goods to undergo task-specific training. Training comprises general awareness, function-specific instruction, and safety training. Refresher training is required every two years.

Drivers operating vehicles transporting quantities that require orange plate labelling must hold a valid ADR driver training certificate pursuant to ADR Chapter 8.2. The basic course covers general transport rules, while specialization courses cover tank transport, explosives (Class 1), or radioactive materials (Class 7).

Employers are required under § 6 GbV to retain complete documentation of all employee instruction sessions. Documentation must include the date, duration, content, participant signatures, and instructor qualifications, and must be presented to regulatory authorities upon request.

Failure to conduct or document employee training constitutes an administrative offence under § 37 GGBefG and § 10 GbV, subjecting management to individual regulatory fines.

The transport document mandated by ADR Chapter 5.4 accompanies dangerous goods shipments and provides essential safety information to emergency responders and enforcement officers.

Mandatory entries include the UN number preceded by 'UN', the official proper shipping name, danger class numbers, packing group, number and description of packages, total quantity, consignor and consignee details, and the tunnel restriction code.

The consignor is legally obligated to issue the transport document, which can be integrated into a CMR waybill or provided as a standalone dangerous goods declaration. Information must be legible, durable, and written in an official language of the origin country plus English, French, or German.

Under § 8 GbV, companies must maintain comprehensive transport and classification records to support the dangerous goods safety advisor's annual report. All records must be archived for at least three months under ADR 5.4.4, while annual reports must be retained for five years.

Frequent labelling violations include missing UN numbers on packages, incorrect hazard class labels, missing orientation arrows on liquid containers, and unlabelled limited quantity (LQ) shipments.

On vehicles, major defects include failing to open orange plates, displaying uncleaned tanks with missing Kemler codes, or leaving placards attached to empty, cleaned transport units.

Under § 37 GGBefG, offences involving improper labelling, missing transport documents, or uncertified drivers carry administrative fines of up to 50,000 Euro per violation. Fines are assessed individually against consignors, loaders, and carriers.

In severe cases involving hazardous materials incidents, inadequate labelling or missing driver qualifications trigger criminal investigations under § 26 GGBefG and personal liability for managing directors under § 130 OWiG.

Achieving robust dangerous goods compliance requires establishing structured internal control systems. Companies must maintain an up-to-date dangerous goods register, implement standardized departure checklists for loaders, and automate employee training tracking.

The dangerous goods safety advisor plays a pivotal role in reviewing operational workflows, auditing packaging and labelling processes, and preparing the statutory annual report under § 8 GbV.

Centralizing documentation-including formal appointment certificates, employee training logs, vehicle inspection records, and annual reports-ensures that regulatory audits by authorities such as the BALM (Bundesamt für Logistik und Mobilität) or local trade supervisory offices proceed smoothly and without legal exposure.

Managing statutory compliance duties across dangerous goods transport, workplace safety, and corporate governance requires structured oversight rather than fragmented administration. CIVAC Workspace provides a central digital compliance platform that unifies task tracking, employee training modules, audit schedules, and document archiving across all mandatory officer roles.

For organizations needing qualified external expertise, CIVAC Externe Beauftragte supplies certified, named dangerous goods safety advisors who manage regulatory duties, conduct required ADR Chapter 1.3 employee instruction, execute transport inspections, and compile audit-proof annual reports pursuant to § 8 GbV.

By combining the CIVAC Workspace platform with CIVAC Externe Beauftragte, executives establish an unbroken chain of custody and legally binding appointment records that withstand official scrutiny and protect management from personal liability under § 130 OWiG.