UK AIP (9 Apr 09) ENR 1-10-1
1.6 Submission Time Parameters
1.6.1 The general ICAO requirement is that FPLs should be filed on the ground at least 60 minutes before clearance to start-up or
taxi is requested. The ‘Estimated Off Block Time’ (EOBT) is used as the planned departure time in flight planning, not the planned
airborne time. Exceptionally, in cases where it is impossible to meet this requirement, pilots or Aircraft Operators (AOs) should give as
much notice as possible, but never less than 30 minutes
.
This includes Jersey and always has, so what's changed?