Seat belts and child seats in the United Kingdom (2026)

Last reviewed: 9 October 2026

In short: A seat belt must be worn in any seat that has one. Children need a child car seat until age 12 or 135 cm, whichever comes first.

RuleWhat applies
Seat belt compulsory in front seatsPassenger carsYes [1]
Seat belt compulsory in rear seatsPassenger carsYes [1]
Child restraint required untilPassenger carsChildren normally need a child car seat until they are 12 years old or 135 cm tall, whichever comes first. [2]
Children in the front seatPassenger carsChild car seats may be fitted in a front seat. A rear-facing baby seat there needs the front airbag deactivated first. [2]
Rear-facing child seat in front with active airbagPassenger carsNo [2]

Sources

  1. GOV.UK: Seat belts: the law: Overview (consulted 9 October 2026) · all sources
  2. GOV.UK: Child car seats: the law: Using a child car seat or booster seat (consulted 9 October 2026) · all sources

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General information, not legal advice. Rules change: check the official source before you fly or ride.