In an open letter sent to the Formula One Teams Association, FIA President Jean Todt said the decision to hold the Bahrain race on Oct. 30 could be revised after teams objected because of logistical and insurance reasons.

“I have listened to your last-minute objections and have asked the commercial rights-holder (Ecclestone) to re-examine his calendar proposal, and if necessary, to resubmit a revised proposal to the world council (FIA),” Todt wrote.

Following assurances by government ministers and organizers that the race could go ahead safely despite ongoing anti-government protests in the Gulf kingdom, the Bahrain GP - originally planned to be the season-opener - was rescheduled for Oct. 30.

The inaugural Indian GP, scheduled for that date, was moved to the final round of the 20-race calendar, which wouldn't come before the start of December.

Following a conference call involving all the F1 teams on Monday, FOTA wrote to Todt, Ecclestone and Bahrain GP organizers on Tuesday, claiming the changes to the calendar would “undermine our scheduled transport plans” and “raise insurance problems.” FOTA also highlighted articles in the International Sporting Code, in particular stating that changes to the calendar couldn't be made without the unanimous approval of all the teams.

Todt confirmed Thursday it was Ecclestone's company, which holds the commercial rights for F1, that had suggested the changes to the calendar.

“The FIA always has at heart the smooth running of the championship and the interests of the teams,” Todt wrote in a letter to FOTA chairman Martin Whitmarsh and vice chairman Eric Boullier, the team principals of McLaren and Renault respectively.

“I hope that a solution satisfactory for everybody can be promptly reached.” At least 30 people have been killed since February during the unrest in Bahrain.

Ecclestone told the BBC on Wednesday that, despite last week's calendar changes, “the schedule cannot be rescheduled without the agreement of the participants.” “Hopefully we can return (to Bahrain) in the future, but of course it's not on,” Ecclestone said.