What Do The New Laws On Child Seats Mean?

As of this month (March 2017) changes to the laws on children’s car seats were implemented. In our guide, we explain what these changes mean.

Age and Height

Your children must use a child car seat until they are 12 years of age or 135cm in height. Once they are over 12 or taller than 135cm they must then wear a seatbelt.


Your child must be sat in a seat with a diagonal seatbelt, unless the chair is intended for lap-belts or it has ISOFIX anchoring points.


Any infant weighing under 9kg should travel in a baby carrier and if your child is younger than 15 months old, he or she must be put in a rear-facing car seat.


Fundamentally, the fresh laws are to stop companies making booster seats without backs for kids shorter than 135cm or weighing under 22kg. It also inspires parents to only use child booster seats for their older offspring.

Older Seats

Despite all the above, the new laws don’t apply to booster seats purchased before the legalities came into effect, nor do they have an impact on older stock in shops. So, you can still use your pre-March 1 2017 booster seats legitimately. However, the whole point of the new ruling is to make car journeys safer for children.

Buy A New Seat

Many car booster seats were retailed with a starting weight of 15kg, which can happen at four years of age. So, while your old chair isn’t forbidden, your little boy or girl will be safer in a high-backed booster seat compared with a backless one. Therefore, while you won’t wind up in trouble for not acting in accordance with the new laws, we do advise that you invest in a new child seat. It is for the safety of your offspring, after all.

Where Can I Buy Them?

You can buy a car seat for children from most places that sell products to do with youngsters. Don’t ever use a second-hand child seat – you don’t know if it’s already been in an accident. Here are just a few outlets you can purchase a brand-new child car seat from:

  • Mothercare
  • Halfords
  • Kiddicare
  • John Lewis
  • Pram World
  • Argos
  • Tesco
  • Other online and retail suppliers.