The new guidelines are published by the International Automobile Federation (FIA) ahead of today's grand prix in Sochi, Russia, writes Autosport and the BBC.

After the victory in the latest Formula 1 race on the Mugello track two weeks ago, Hamilton folded down his flameproof Formula 1 suit and took his place on the podium wearing a black shirt with the text "Grab the cops who killed Breonna Taylor".

Button the suit

Although Hamilton's protest is not mentioned in the statement from the FIA, there is no doubt about what has caused the rule change.

"Throughout the award ceremony and the victory interview, the drivers in the first three places must be wearing their competition suits up to the chin and not rolled down to the waist," it says in the new regulations published on Sunday.

Ahead of this weekend's competition in Russia, Lewis Hamilton said he had not been contacted by the FIA ​​after his protest.

"This is a learning process for everyone involved because people have been happy with the norm and how it has worked so far in society," Hamilton told Autosport.

Change required

- But after all, the world and especially the younger generation is more aware that seeking and things are not fair and that change is needed.

Lewis Hamilton has been very committed and loud in his political commitment to racism and for the equal value of all.

Breonna Taylor was killed by police during a house search in the US state of Kentucky in March.

None of the three police officers involved have been brought to justice for her death, however, one of them was charged with exposing Breonna Taylor's neighbors to danger in connection with the shooting.