The original Brexit deal negotiated by former prime minister Theresa May contained a route to minimise checks on what are known as "rules of origin" https://buff.ly/2GbYry9
Theresa May tries to get MPs to back her Brexit deal on her original deadline date https://www.theneweuropean.co.uk/top-stories/prime-minister-tries-to-get-mps-to-back-her-brexit-deal-on-march-29th-1-5966163