Following a vote at the F1 Commission on Monday, the matter drew universal support from all parties.
Although the plan still needs formal approval by the FIA’s World Motor Sport Council before being put into the rule book, this should be a formality.
The idea is to run a Saturday 100km sprint qualifying race at three grands prix this year.
The result of this race will decide the grid for Sunday’s main event, as well as offering a small number of points (3-2-1) for the top three finishers.
F1 CEO Stefano Domenicali said: “We are excited by this new opportunity that will bring our fans an even more engaging race weekend in 2021. Seeing the drivers battling it out over three days will be an amazing experience.
“I am sure the drivers will relish the fight. I am delighted that all the teams supported this plan, and it is a testament to our united efforts to continue to engage our fans in new ways while ensuring we remain committed to the heritage and meritocracy of our sport.”
More to follow.