Under the Nationality, Immigration and Asylum Act 2002 anyone wanting British citizenship must attend a citizenship ceremony. New citizens must take an oath or affirmation of allegiance to the Queen and make a pledge of loyalty to the United Kingdom.
How do I book a citizenship ceremony?
If your application has been successful the Home Office will contact you to invite you to attend a citizenship ceremony. Please call 0113 222 4408 to arrange a date for your ceremony.
You will need to attend a ceremony within 3 months of receiving your letter. If you cannot attend within this time the Home Office may withdraw your invitation and you will have to apply and pay the fee again.