How long can this seat be rearfacing?

Hi Claire, Thank you for your enquiry. The Britax Boulevard Click tight can be used Rear Facing from when the childs weight is 2.2kg up until they reach 18kg. For further information on this product you can find details under the pink “specifications” tab or the pink “download Instructions” tab underneath the product picture online. If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder where you can find contact details for your nearest Baby On The Move Store. Here, one of our expert Car Restraint Technicians can assist in helping you to find the right car seat for you and your child. We hope this has helped with your query.