The current three-year cycle of entries ends this year, and applications are already being considered for the next three-year bracket.

But Autosport reveals, the GP2 teams will be forced to compete in both the main GP2 series and GP2 Asia series as part of the selection criteria for the 2011-13 seasons.

Most of the teams already contest in both series, but Malaysian Meritus Racing only competes in Asia, and Racing Engineering, which carried Giorgio Pantano to the 2008 GP2 title, has never competed in the Asia series.

GP2 boss Bruno Michel confirmed to the magazine that situation will change.

"Teams will have to do both series," Bruno Michel said. "We will select exactly the same teams for Asia and the main series. So the situation of Meritus, which was the only team to just do Asia, will not continue. But on the other hand, Meritus will be considered with the other applicants to see whether it will get an entry for Asia and the main series this year."