Statement of Changes to the Immigration Rules HC 1888 builds upon the extensive changes to Tier 1 which were brought in from 6 April 2011 by HC 863. The new changes have become effective from 6 April 2012 and the descriptions of Tier 1's subcategories set out below reflect the state of the Tier 1 regime since that date.
Tier 1 enables high value individuals: entrepreneurs, investors and the exceptionally talented to enter or to stay in the UK to contribute to its economic wealth and productivity.
Tier 1 (General) - for highly skilled workers (this subcategory is closed to those seeking entry to the UK).
Tier 1 (Investor) - for people of substantial financial means making an investment in the UK.
Tier 1 (Entrepreneur) - for those wishing to establish a business in the UK or to take over an existing business. People can visit the UK as "prospective entrepreneurs'' in order to secure agreements which may entitle them to remain as Tier 1 Entrepreneur migrants.
Tier 1 (Graduate Entrepreneur) - a new category comprised of those wishing to develop a business idea immediately upon graduating, and who have been identified by UK universities as having developed world-class innovative or entrepreneurial skills, but who are not at the time of their graduation ( and, presumably at the time of the expiry of their leave to remain as a Tier 4 (General Student ) in a position to meet the full requirements of the Tier 1 (Entrepreneur) route.
Additionally from 6 April 2012 graduates from outside the European Area who have studied in UK educational institutions and who have been identified by their college as having ''world class innovative ideas'' are entitled to switch from Tier 4 into Tier 1.
Tier 1 (Exceptional Talent) - for "exceptionally talented individuals in the fields of science, humanities, engineering and the arts".
Tier 1 (Post-study work) - a route for graduates from UK educational institutions whereby they are enabled to work in the UK for a period of two years. This subcategory has been deleted in April 2012.