Is the Monterey XT certified for use in Australia?

Hi John, thank you for your inquiry, the Diono Monterey is not suitable for use in Australia, only Australian/NZ Standard seats are suitable for use while there. We hope this helps. 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.