Lap belt installation

Hi Glenda, thank you for your inquiry, Britax recommends that the top tether be used at all times when installing the child seat. this may not be able to be used if you used the seat with the lapbelt. we would again advise speaking to your nearest Baby On The Move Store. if you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder. Here you can find contact details for your nearest Baby On The Move Store where one of our team experts will be happy to assist you in your product search and help answer any further questions you may have. We hope this has helped with your query.