Ferrari and Red Bull Racing have been forced to drop plans to alter their testing schedule for the final pre-season session of the year in Barcelona.
The two teams had planned to run from Friday to Monday rather than from Thursday to Sunday only for the FIA to inform Ferrari that it wasn't possible to amend the dates.
“Based on a new clarification of Article 22.4 of the Sporting Regulations, which was sent to the teams late yesterday evening, it is no longer possible to run on Monday 5 March,” a statement from Ferrari read. “As a result, the test schedule for Scuderia Ferrari and the other teams that had originally decided to follow this option now reverts to that of the majority, running from Thursday 1 March to Sunday 4 March.”
Ferrari will run Felipe Massa on Thursday and Saturday, while Fernando Alonso will be in action on both Friday and Sunday.
Red Bull will also alternate its drivers, with Mark Webber in the RB8 for Thursday and Saturday, and Sebastian Vettel running on both Friday and Sunday.
The order in which our drivers will be working remains unchanged: Felipe Massa will be at the wheel of the F2012 on Thursday and Saturday, with Fernando Alonso driving on Friday and Sunday.