
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/836116/Explanatory_Note_Accessible.pdf

http://www.britishchambers.org.uk/press-office/press-releases/bcc-no-deal-not-an-option-for-business-communities.html

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/637748/Future_customs_arrangements_-_a_future_partnership_paper.pdf