On 1 April 2013 the UK Border Agency was split into two separate units within the Home Office: a visa and immigration service and an immigration law enforcement division. By creating two entities instead of one, the Home Office will be able to create distinct cultures. First, a high-volume service that makes high-quality decisions about who comes here, with a culture of customer satisfaction for businessmen and visitors who want to come here legally. And second, an organisation that has law enforcement at its heart and gets tough on those who break our immigration laws.
Over time we will move the content from the UK Border Agency’s website to the Government’s digital service at GOV.UK. In the meantime, new and updated content added to their website will reflect the new Home Office structure and brand.
These organisational changes to the UK Border Agency do not affect the validity of any reference to the agency in any document or form on their website. The UK’s Immigration Rules will also remain in force.
(via UKBA Site)