MotoGP's ruling body, FIM, has revealed the provisional calendar for the 2012 season, with the same 18 grands prix as in 2011.
The season will again kick off in Qatar at night on 15 April, and that will be followed by back-to-back races at Jerez and Estoril, although both events are subject to the contracts, FIM said.
Valencia will close the season in November.
The United States and Indianapolis Grands Prix will take place one after the other, but with three weeks in between them.
The German Grand Prix in July appears as subject to a contract, but also without a circuit assigned to it, with speculation suggesting Sachsenring could lose the event to another circuit next year.
Despite doubts about its future, the Australian Grand Prix at Phillip Island is also on the provisional calendar.
The Japanese Grand Prix has secured an October slot. The race was scheduled for April this year but was moved to October because of the tsunami.
Provisional 2012 calendar
15 April Qatar* Doha/Losail 29 April Spain (STC) Jerez de la Frontera 6 May Portugal (STC) Estoril 20 May France Le Mans 3 June Catalunya Catalunya 17 June Great Britain Silverstone 30 June Netherlands** Assen 8 July Germany (STC) TBC 15 July Italy Mugello 29 July United States*** Laguna Seca 19 August Indianapolis Indianapolis 26 August Czech Rep. Brno 16 September San Marino Misano 30 September Aragon Motorland 14 October Japan Motegi 21 October Malaysia Sepang 28 October Australia Phillip Island 11 November Valencia Ricardo Tormo * Evening race ** Saturday Race *** Only MotoGP class STC (Subject to the contract) TBC (To be confirmed)