bluskis:
Standards Document No 25 V 1 Part 1 General Information
1.1 The IMC Rating is a UK National rating and not a JAA rating. As such it is only valid for flight in UK territorial airspace, and in Channel Islands and Isle of Man airspace.
1.2 An IMC Rating (Aeroplanes) is valid in both single engine and multi-engine, single pilot aeroplanes. If the IMC Rating test is flown in a multi-engine aeroplane then some aspects of asymmetric flight will be tested.
1.3 An IMC Rating (Aeroplanes) is valid for 25 months. Any revalidation or renewal of the rating will be valid for 25 months from the date of the revalidation or renewal flight test.
