A UK passport application need only be countersigned if it is :
* for a first passport
* to replace a lost, stolen, or damaged passport
* to renew a passport when your appearance has changed so much that it would be hard to recognise you from the photo in your last or current passport.
You can renew your passport whenever you want .You do not have to wait for it to run out. The IPS (Identity & Passport Service) can add any period that your passport has to run out, in whole months up to 9 months, to your new passport.
The turnaround times for new passports are not guaranteed. Mine was issued on 11 April after applying on 5 April this year. Don't book any travel arrangements until you have received your new passport.
