Charles Leclerc received an official warning after violating the protocols on Formula 1 coronaviruses.
The Ferrari driver returned to Monaco this week between the Austrian and Styrian Grand Prix at the Red Bull Ring and was photographed with friends.
Staff must remain in their “bubbles” between races.
An FIA spokesman said Ferrari had received a recall and warned that “any new offenses could be reported to the sports commissioners”.
Officials can prevent staff from attending races if they ignore the rules.
Leclerc was found to be in violation of article 3.14 of the Covid-19 code of F1, which stipulates: “Any time outside the site during a covered event or between covered events must be spent with other members of the same group, keeping interaction with people outside this group to a minimum. ”
Mercedes driver Valtteri Bottas also returned to Monaco this week, but was found not to have broken the guidelines as he remained in his bubble, which includes his coach Antti Vierula and his girlfriend, cyclist Tiffany Cromwell .
Leclerc said: “I did it [go] back home. However, I was tested twice before coming back. So in two days, test twice, both of course negative. That’s all. “
Bottas added: “Obviously, I found out if it was ok, to go back, and yes, it is,” said Bottas. “And of course, it doesn’t really make a difference if I stay with the same people in the same bubble, whether I’m here or at home in Monaco.
“So I decided to go home because, ultimately, we are in Europe and the trips are quite short so there is not really any stress related to the trip.
“I just wanted to spend these three full days at home. I thought it was very nice to relax for the weekend, so I think it was a good decision on my side. I just tend to do things that work for me, how I feel about what I want to do between races.
“From a security standpoint, there is no difference. Always the same people I’m going to deal with here. “