Warning! NEW Government Regulations
From March 2009, Jet2.com is legally required to provide the UK Home Office with passport data for all passengers departing from and arriving into the UK. You are therefore required to provide Jet2.com with accurate travel document information. You may provide this data anytime between the time of your booking and 5 hours before departure. Failure to provide accurate data may result in you being denied boarding.
You may enter this data below by clicking on next to each passenger name.
You have to go onto jet 2 homepage, click on manage booking in the bottom left hand corner and then enter your booking reference on the next screen and follow the instructions as above. Don't understand why they have not sent e-mails out to worn everyone about the changes, sounds like you may not be able to fly without doing so. I only found out because i went on to add an extra bag onto our booking.