The Identity and Passport Service (IPS) is an Executive Agency of the Home Office and was established on 1 April 2006 after the passing of the Identity Cards Act 2006. It was created from a merger of the UK Passport Service and the Identity Cards Programme of the Home Office. The General Register Office (GRO) became part of IPS on 1 April 2008. The IPS is responsible for the issuing of passports to British nationals presently living in the UK, delivering the National Identity Scheme capability, and delivering the functions of the GRO in England and Wales and supporting the Registrar General in discharging his duties.
https://www.britzinoz.com/uk-passport-issuing-authority/
呢個有講UKPA, UKPS, IPS係乜
The line with HMPO is the normal one for most British born UK Citizens.
IPS was the Identity and Passport Service from 2006 to 2013. (The Identity and Passport Service was renamed HM Passport Office on 13 May 2013).
UKPS was the United Kingdom Passport Service (A previous name before HM Passport Office).
UKPA was the UK Passport Agency (A previous name before HM Passport Office).
HMPO is the current “Her Majesty’s Passport Office”.
People who had passports issued by Agencies such as the Hong Kong passport office, or Gibraltar, etc., would tick “other”.