https://blogs.sussex.ac.uk/uktpo/2017/09/01/the-eu-regulatory-magnet/
https://www.nao.org.uk/wp-content/uploads/2017/07/The-Customs-Declaration-Service.pdf
https://www.brookings.edu/wp-content/uploads/2023/03/USMCA-Forward-2023.pdf
https://focusweb.org/wp-content/uploads/2021/02/Interrogating-the-Food-2021.pdf