Up until September 2014, once a child reached the upper height marker on a forward-facing 0–4 child restraint, they would move into a booster seat. In September 2014, a new class of child restraint was introduced — the G-type seat. A G-type seat is a forward-facing restraint (6 months to 8 years) that keeps a child harnessed until they’re approximately 8 years old.
📏 Where height markers came from
The 2010 standard introduced shoulder height markers, replacing the age/weight confusion that had existed since 2004. This made it much easier for parents and carers to determine whether a restraint suits their child, and when it’s time to move to the next type.
Booster, tethered (4yrs–10yrs) height markers
| Seat | Entry | Exit |
|---|---|---|
| Safe n Sound Encore 10 | 36cm | 53–55cm |
| Safe n Sound Hi-Liner | 34cm | 50–54cm |
| Infa Secure Travel Max | 36cm | 50cm |
| Hipod Boston | 37cm | 50–51cm |
| Infa Secure Fusion / Lunar / Stanza | 36cm | 49cm |
| Mothers Choice Imperial | 35cm | 49cm |
| Babylove Ezy Boost | 35cm | 47cm |
| Infa Secure Vario Caprice / Vario Kid / Vario Crown / Vario Grange / Transit | 36cm | 47cm |
| First Years Compass Booster | 32cm | 49cm |
🔧 Booster seat installation
Installation of a booster seat is fairly straightforward, but does need explaining — how the seat should be used and adjusted to suit the child. It’s highly recommended the child is present when the booster seat is being installed. The Kid Guard has 4 separate adjustments that need to be monitored while your child uses this booster seat.
📏 Shoulder height markers — untethered booster (4–8yrs)
This same table also appears on our Untethered Booster Seats guide — worth linking directly to that page instead of duplicating it here once your site structure is finalised, to avoid identical content living on two URLs.
| Seat | Entry | Exit |
|---|---|---|
| Safe n Sound Tourer | Not published | 50cm |
| Safe n Sound Urban | 35cm | 49cm |
| Hipod Rio | 40cm | 48cm |
| Infa Secure Versatile / Traveller | 36cm | 45cm |
🪑 Untethered booster installation
An untethered booster seat doesn’t require installation — but remember, it’s an occasional seat meant for emergencies and ad-hoc use. Head protection isn’t adjustable, and the seat isn’t tether-strapped to an anchor point.
Call 0420 516 587 for a car seat fitting service to your home in the south eastern suburbs.
❓ Frequently asked questions
What are the child restraint standards for boosters? ＋
Booster seats are designed for a child who has outgrown a forward-facing restraint, and uses the car’s lap/sash belt. It’s important that the sash part crosses your child’s shoulder, not their neck — most booster seats include a sash guide to help position the belt correctly.
Parents can, and still do, use booster seats — there’s nothing preventing their use. Booster seats come in a few variations: a straight plain booster seat, a booster seat/forward-facing combination restraint, and a rear-facing/forward-facing/booster all-in-one seat (the only restraint in this last category is the Infa Luxi).
Can a booster be used with a lap belt? ＋
Are you a registered professional baby car seat fitter? ＋
Bayside Baby Car Seat Installation
Not sure which booster fits your child right now? Book a fitting for expert, independent advice.
Call 0420 516 587 — south eastern suburbs.