“The British food industry had spent over £200m on export health certificates since Brexit controls came into force in January…
“Export health certificates needed to export food to the EU.” https://www.express.co.uk/news/politics/1748178/brexit-british-fishermen-export-health-fee-eu
“British companies have filled in 48m customs declarations and 140,000 export health certificates since Britain left the EU.” https://www.thelondoneconomic.com/politics/brexit-wipes-17bn-off-uk-trade-with-the-eu-in-just-three-months-300061/