The proposed World Rally Championship events in Russia and Indonesia have been removed from the 2010 calendar after failing to pass an FIA inspection.
Two new venues intended to join the championship as part of a two-year calendar rotation system that will include a total of 24 events over 2009 and 2010, it was decided that neither would be ready for their allocated dates.
No specific replacements have been confirmed, but the FIA has said it will only consider established events that don't otherwise have a 2010 calendar slot.
In addition, having been missing from this year's schedule, the FIA have also said the Monte Carlos Rally may not return until 2011, instead of 2010 as originally planned.
The one other new venue on the 2010 calendar, Bulgaria, is expected to go ahead as planned.