Zero Waste Living for you and your family

Booster Seat Safety ... and Beyond!

Booster Seat Safety ... and Beyond!

When is the best time for your child to move from their 5-point harness forward-facing car seat into a booster seat?

Current best practice recommends staying in a harnessed seat until your child grows out of the weight or height requirements of that seat. Legally, all children under 40 lbs. are required to be in a harnessed seat. But this is a basic minimum. A Clek Foonf or Fllo will allow your child to stay in their 5-point harness up to 49" tall or 65 lbs. There are other factors to take into consideration before moving into a booster seat.


Clek recommends considering the following questions before making the move into a booster seat.

  • Will the child leave the seat belt in its proper position during every ride?
  • Will the child remain sitting upright without slouching or leaning?
  • Will the child stay in the seat and not try to escape?

If the answer to all three of these questions is yes, and your child meets the requirements for their booster seat, it's time for a transition!

Some families ask, "Do we need a high back booster?" The answer for most children is yes. The belt guide provided by the high back allows the shoulder strap to lay in the ideal place on your child's body. The head rest provides support to your child's head, neck and spine while they're sleeping and in the event of a collision. The lap belt will be guided through the seat portion to lay low across your child's hips, not on their belly. Once your child has excellent body control, maturity, and the shoulder belt is at or above their shoulder, they can use the booster without the high back.

Clek Inc. has a stellar photo series to demonstrate just how seat belts should fit on a child in a booster.

A child in a grey and white high back booster seat with the text, "1) The headrest provides a place for children to rest their head safely."

A child in a grey and white high back booster seat with the text, "2) Shoulder belt guide helps to position the seat belt properly."

A child in a grey and white high back booster seat with the text, "3) Seat back helps to keep child sitting upright."

A child in a grey and white high back booster seat with the text, "4) Lap belt guide helps to position the lap belt low across the child's hips."

When your child has reached the weight and hight limits of their booster seat, it is time for them to take the 5-step test.

  1. Is their back able to touch the back of the vehicle seat?
  2. Are their knees comfortably bent over the edge of the vehicle seat?
  3. Does the shoulder belt lay flat across their collarbone? (Not on their neck, nor shoulder)
  4. Does the lap belt lay low on their hips/upper thighs?
  5. Can they stay in this position for the whole car ride, even while sleeping?

If the answer to any of these questions is no then your child is not yet ready to transition from their booster seat yet. And that's ok! There can be mixed feelings about this from your child, your partner, or maybe friends or family but ensuring your child is safe in a vehicle is a top priority. 

If your child easily answers yes to all of the 5-step test questions, it's time to move on from child passenger safety seats! This will be a milestone for your child but every child is different and will come to this transition in their own time.

The very last transition will be knowing when they are ready to sit in the front seat. The biggest consideration for sitting in the front seat is airbag safety. They should be positioned farther back from the airbag locations as their bones and ligaments are not developmentally able to take the energy released by the airbags without serious injury until they are older teens/adults. They must be able to pass the 5-step test in the front seat, and be sure to never let them rest their feet on the dashboard where the airbag is released. 

Before you know it they'll be in the drivers seat learning how to drive themselves!

Good luck parents!


For more information, check out the following resources:

Booster Seat by SEATS for Kids

Seat Belt by SEATS for Kids 

When to Move From Harness to Booster by Clek Inc.

Booster Car Seat Basics by Clek Inc.

The 5-Step Booster Test by Clek Inc.

Things to Consider Before Allowing Your Child to Ride in the Front Seat by Clek Inc.

Leave a comment

Also in BLOG

Forward-Facing Car Seat Safety
Forward-Facing Car Seat Safety

Rear-Facing Car Seat Safety
Rear-Facing Car Seat Safety

Here's a concise explanation for why rear-facing as long as possible is best for your child and how to get the best fit in the 5-point harness when they are rear-facing.
Go Cloth Baby!
Go Cloth Baby!

Introducing our NEW Cloth Diaper Trial and Newborn Cloth Diaper Rental Programs!