https://f1.com/3y8zOI5 (British GP will be open to a full capacity crowd ~130,000 in mid July) "Ticket holders will be asked for either proof of a negative lateral flow test taken within 48 hours of arrival at Silverstone or proof of full vaccination, the second dose having been received at least 14 days prior to the first day of attending the British Grand Prix."
Good luck enforcing that! All prepare to point and laugh at England when they get a massive surge of new cases a week later.
They're already experiencing another massive surge though >_> ---