@GeorgeDaviesF1 Yes, this is the case. Article 17.2 of the 2012 sporting regulations says:
Appeals may not be made against decision concerning the following:
d) Any decision taken by the stewards in relation to Article 36.1.
Article 36.1 says:
During Q1, any driver whose best qualifying lap exceeds 107% of the fastest time set during that session, or who fails to set a time, will not be allowed to take part in the race. Under exceptional circumstances however, which may include setting a suitable lap time in a free practice session, the stewards may permit the car to start the race.
Should there be more than one driver accepted in this manner, the grid order will be
determined by the stewards.
Note that stewards still have the power to grant dispensations so this does not mean any driver who fails to beat the 107% time or fails to set a time in Q1 will automatically be unable to start the race.