英国签证tier3是什么？
Tier 3 is for foreign nationals coming to the UK as a student. This includes people who want to study in the UK but also those who come on a Tier 4 (General) Student visa， which allows them to work part-time up to an aggregate of 20 hours per week during term time and full-time when not attending classes，as long as their main purpose remains that of education or training. There are certain requirements regarding age and English language abilities， among others.
What does this mean if I am here on a tier 4 student visa？ Well， you must fulfil all the conditions attached to your student visa， such as enrolling at a university or college that holds a Tier 4 sponsor licence；you cannot switch into another immigration category unless it meets with Home Office’s criteria or your circumstances have changed; and you may need to leave Britain before you complete your course， especially if you overstayed on your original entry或leave. Some visas even require you to be present within British borders throughout the duration of your studies！ What？！ If only…
The worst thing about these types of visas though， besides having strict rules attached to them like crazy，is that they are subject to various sanctions should you end up breaking any one of its stipulations. These include deportation from Britain and being banned from re-entering the country for between three years and four decades depending on the seriousness of what offence you committed. Yikes！ So make sure everything stays on track whilst studying in Britain－it takes more than just perseverance！