A new race in Texas has been confirmed on the MotoGP calendar for the weekend of 19-21 April 2013.
The race will take place at the Circuit of the Americas in Austin, Texas, which will host a Formula 1 race next month.
Carmelo Ezpeleta, head of organisers Dorna, said: "We are excited to bring our series to an exceptional new facility in Texas."
The announcement leaves just another proposed new race in Argentina in April still to be confirmed.
and the race is expected to take place at the Termas de Rio Hondo circuit.
The South American country last hosted a motorcycle grand prix in Buenos Aires in 1999.
The Texas race will be the third of the season, which starts with the now traditional night race in Qatar on 31 March.
Building work on the new Texas circuit was halted in November 2011, when the circuit's owners said they had not been granted a contract to stage the race.
But the track was last month and the F1 race will take place on 18 November.
Provisional 2013 MotoGP calendar
31 March - Qatar* Doha/Losail
14 April - TBC TBC
21 April - Texas, Circuit of the Americas
05 May - Spain (STC), Jerez
19 May - France, Le Mans
2 June - Italy, Mugello
16 June - Catalunya
29 June - Netherlands**, Assen
14 July - Germany, Sachsenring
21 July - United States***, Laguna Seca
18 August - Indianapolis
25 August - Czech Republic, Brno
01 September - Great Britain, Silverstone
15 September - San Marino, Marco Simoncelli Misano
29 September - Aragón
13 October - Malaysia, Sepang
20 October - Australia, Phillip Island
27 October - Japan, Motegi
10 November - Valencia
* Evening Race
** Saturday Race
*** Only MotoGP class
STC (Subject to the contract)
TBC (To be confirmed)