All personnel within Formula One must be vaccinated before the start of the 2022 season. According to The Times, the sport is continuing the restrictions of the American Grand Prix, and requiring double vaccinations.
For the United States Grand Prix, all attendees in the paddock were required to have been double vaccinated. Testing has been standard in Formula 1 since the coronavirus broke out, but in 2022 the sport is now also drawing a line. Everyone in the paddock must be fully vaccinated.
It shouldn't cause any problems in F1, since everyone is reportedly already fully vaccinated. According to the medium, however, it is likely that this rule is going to cause the number of tests in a weekend to be reduced and also make the bubble less strict. This bubble first ensured that the paddock really consisted of certain smaller bubbles, which were not allowed to come into contact with each other.