The World Motorsport Council (WMC) has given organizers until May to prove the postponed Bahrain Grand Prix can go ahead this season.
The length of final qualifying in Formula One has been cut to 15 from 20 minutes after complaints by fans that the sessions were too boring.
Formula One team chiefs have unveiled proposals for a new qualifying format that they hope will be introduced in time for the British Grand Prix in July.
Formula One team chiefs agreed in principle to changes designed to make the sport more exciting after a meeting with FIA president Max Mosley in Monaco.