At New Year 2027, several rules for lorries and buses change at once: the height may be 4.20 m, road trains with seven axles may weigh 58 tonnes, and ADR 2027 enters into force. Here is the checklist — and the things that are still only proposals.
Introduction
| What | Up to and including 31/12/2026 | From 1/1/2027 | Source |
|---|---|---|---|
| Height: buses and lorries and their trailers (from 2027 also tractors and motorised equipment) | 4.10 m | 4.20 m | Executive Order (BEK) 1447/2025, §§ 13 and 38 (BEK 1331/2024, § 13 applies until 31/12/2026) |
| Road trains with seven or more axles (vehicle + trailer subject to registration) | 56,000 kg | 58,000 kg | Executive Order (BEK) 1447/2025, § 21(2)(9), and § 38(2) |
| Modular road train with seven axles | — | 58,000 kg | Executive Order (BEK) 1491/2025, § 7(1)(2), and § 20(3) |
| ADR (dangerous goods) | ADR 2025 edition | ADR 2027 edition | UN notification C.N.252.2026 |
ADR 2027: the UN depositary notification of 1 July 2026 says that the amendments enter into force on 1 January 2027 unless they were rejected before 1 October 2026. A transitional period for ADR 2025 is not stated in the notification and is ⚠️ not confirmed in the primary source.
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