Electronic adverts, promoted by Britain's Government, alert businessess that they need to be ready for the end of the 'Brexit transition period' are pictured in a bus stop in central London on December 8, 2020, as talks on a trade deal between the EU and the UK enter a critical stage. - With just a month until Britain's post-Brexit future begins and trade talks with the European Union still deadlocked, the UK government on Tuesday urged firms to prepare as it scrambles to finish essential infrastructure. (Photo by Tolga Akmen / AFP) (Photo by TOLGA AKMEN/AFP via Getty Images)