Upvote:4
The ICAO specifications for passports state that passports in English, French or Spanish should also include one of the other two languages for certain data fields. The UK has chosen to use French. (By contrast, US passports use English and Spanish.)
Captions in French in the British passport (Letters, August 11) are explained by the International Civil Aviation Organisation standard, which most countries adhere to in order to ensure that their passports are accepted worldwide.
The standard recommends that, where the language of the issuing state is English, French or Spanish, the issuing state should use one of the other two languages.
The second language for ours has long been French. Until 1772, both Latin and English were used for passports, then French alone until 1858, only after which passports were written in English.
Kevin Sheehan
Director, Identity and Passport Service
London SW1
Thus, your passport data page will include both English and French text.