What safety standard should a infant car seat have?
Short answer: Car seats: look for ECE R44.04 (or R44.03) or i-Size R129, shown by the 'E' mark label.
- Look for R129 (i-Size) or R44.04 approval and the E mark.
- Check the fit in your car and whether you need an ISOFIX base.
- Take your baby out when you arrive, as the NHS advises.
What the guidance says
- Car seats: look for ECE R44.04 (or R44.03) or i-Size R129, shown by the 'E' mark label.
- No safety standard covers SIDS, so a product that meets a British Standard is not automatically safer for sleep.
Related questions
What is a infant car seat?
A rear-facing car seat for newborns, often clicking onto a pushchair.
Shop at Baby Kingdom
- Nimbus 180° Spin i-Size Car Seat
- Radial i-Size Plus 360 Spin 40-150cm Car Seat
- Venus Prime Jogger Stroller & Rotating Group 0+/1/2 ISOFIX Car Seat
- Cirrus i-Size Car Seat
Check each product page for its exact dimensions, mattress size, age and weight limits and safety standards.
More advice
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Sources
- The Lullaby Trust: Baby mattresses and bedding (accessed 2026-10-21)
General information only, not medical advice. Always follow your product's instructions. If you are worried about your baby, contact your GP, health visitor or 111. In an emergency, call 999.