North America’s sole remaining F1 stage, the Canadian GP at the Circuit Gilles Villeneuve in Montreal, has been left off next year’s calendar. After a meeting of the World Motor Sport Council on Tuesday, the sport's governing body issued an amended 18-race calendar, omitting the race previously scheduled for 7 June.

Instead, the Turkish grand prix has been moved from 9 August to June, creating a four week gap between the Hungarian GP on July 26 to the European GP on August 23.

This will be the first time since 1987 that the Canadian GP will not feature on the F1 calendar. The event, first held in 1967, was previously left off the calendar 21 years ago because of a dispute over sponsorship.

The reason the latest decision is rumored to be because of contractual problems between Circuit Gilles Villeneuve officials and commercial rights holder F1 management, reports the Associated Press. Canadian GP officials are yet to confirm the news.

The lack of a North American F1 event could reignite the chance of the sport returning to the Indianapolis Motor Speedway in the United States, although F1 supremo Bernie Ecclestone has repeatedly stated that he is more interested in emerging markets.
Another development that emerged from Tuesday’s meeting was a decision to allow "teams to equalize engine performance across the field for 2009, pending the introduction of cost-saving measures from 2010".

FIA president Max Mosley was also given authority to negotiate with the F1 teams' alliance FOTA and introduce "radical measures to achieve a substantial reduction of costs in the championship from 2010".

The revised 2009 F1 season is as follows:

29 March - Australia
5 April - Malaysia
19 April - Bahrain
10 May - Spain
24 May - Monaco
7 June - Turkey
21 June - Great Britain
28 June - France
12 July - Germany
26 July - Hungary
23 August - Europe (Valencia)
30 August - Belgium
13 September - Italy
27 September - Singapore
11 October - Japan
18 October - China
1 November - Brazil
15 November - Abu Dhabi