Car Seat Jargon

Car Seat Jargon

Interpreting a foreign language.



The ISOFIX & LATCH (Lower Anchors and Tethers for Children) systems consist of lower anchors in the vehicle and lower attachments on child restraints. This method of installation allows a child restraint to be snapped into place instead of being held by the adult safety belt.

ISOFIX type attachments are not necessarily safer than a seat belt, however it does have the potential to reduced the amount of incorrectly installed child seats.


Travel system

A car seat adapter that mounts an infant capsule onto a buggy.


Tether strap

An anchorage strap used to hold a child restraint to the vehicle. They are usually anchored from the top of the child restraint to a bolt in the back of the vehicle.  Due to the specific seat belt path used on car seats that meet the EU standards, tether straps are not required. Always use according to manufacturing instructions.


Locking clips

A metal or plastic clip or clamp that stops the lap portion of a lap-sash belt from lengthening during normal travel. They are a simple and inexpensive device that should be placed within 2cm of the seat belt buckle.  Locking clips are not required on all car seats for example if the car seat has a built in locking device or if the vehicle has an automatic retractor safety belt (if the belt is fully extended will lock as it retracts).


Manufacturer expiry date

Child car seats expire between 6 to 10 years from manufacture*.  The car seat shell is made of plastic which becomes brittle and weak as it ages. Car seat technology and standards also improve over time improving child safety.

*Always use according to manufacturing instructions 

International car seat weight groups Group 0:   ≤ 10kg
Group 0+: <13kg
Group 1:   9-18kg
Group 2:   15-25kg
Group 3:   22-36kg