The Test and Trace guidance has been updated in line with the move to Step 4 (England) including the removal of the requirement for businesses to display and use QR codes. However it is important to note that It is still a  legal requirement for people to self-isolate if they test positive for COVID-19 or are identified as a contact and told to self-isolate by Test and Trace. Failure to do so can still result in a fine, starting from £1,000.