The Government Authorised Exchange (GAE) route provides individuals with the opportunity to come to the UK on a temporary basis on Home Office-approved exchange schemes, which fall into four types of programme: • work experience—this also includes volunteering, job shadowing and internships • training—in the fields of science and/or medicine, or training delivered by HM Armed Forces or UK emergency services • research and fellowships—for those on a scientific, academic, medical, or government research project at a UK Higher Education Provider or another research institution operating under the approval of a relevant government department, or • taking part in an overseas government language programme Where the scheme is a work experience programme, the maximum period of stay in the route is 12 months. For other types of scheme, it is 24 months. The GAE route is a Temporary Worker route. Prior to 1 December 2020, under the pre-Brexit Points-Based System, the route was called Tier 5 (Government Authorised Exchange). From 1 December 2020 to 11 October 2021, it was