Formula One will replace the traditional qualifying format with a shortened sprint race at Silverstone, Monza and a third event this season.
July's British GP will be the first test of this new format, which is the most significant change to the race weekend format in the modern era.
The rule changed was passed Monday following unanimous agreement of the 10 teams.
It will see qualifying take place on Friday in place of the second practice session. That will follow the usual Q1-Q2-Q3 format and set the grid for a short sprint race to take place instead of the traditional qualifying slot on Saturday afternoon.