How does the Northern Ireland Highway Code say dogs should be restrained in a vehicle?

The Northern Ireland Highway Code says dogs and other animals in a vehicle should be suitably restrained so they cannot distract the driver or injure occupants or themselves.

The Northern Ireland position should be checked against current nidirect/DfI guidance and the NI Highway Code. Rule 57 gives examples including a seat-belt harness, pet carrier, dog cage or dog guard. The wording is a safety requirement in the Code even though there is not a standalone offence called “unrestrained dog in a car”.

For this exact issue — “How does the Northern Ireland Highway Code say dogs should be restrained in a vehicle?” — the details that usually decide the answer are the passenger’s age, height, seating position, whether a belt is fitted, the type and approval of any child restraint, and whether a narrow statutory exception applies. Northern Ireland makes the driver responsible for children under 14, while passengers aged 14 and over normally carry their own seat-belt responsibility.

Choose a restraint appropriate to the animal and vehicle. A loose animal that interferes with driving can contribute to careless or dangerous driving issues after an incident. Keep evidence such as photographs, policy wording, vehicle plates or official notices where they could matter later; this is especially useful if an incident, fine or insurance question follows.

Before publishing this answer, the key factual point in “How does the Northern Ireland Highway Code say dogs should be restrained in a vehicle?” was checked against current Northern Ireland official guidance. That matters because road rules, licence entitlements and enforcement details can differ from Great Britain and can change over time; the sources attached below are the ones to re-check if the rule is updated.