Since 21 May 2021, visiting academic researchers (other than exempt nationals) who are carrying out or taking part in research at postgraduate level or above in certain sensitive subjects must hold an ATAS certificate before they begin any such research.
Although this certificate is only needed before research begins, it is strongly advised that the visitor obtains this before travelling to the UK.
Exempt Nationalities: Those from EU/EEA, United States of America (USA), Australia, Canada, Japan, New Zealand, Singapore, Switzerland, and South Korea.
Find out more information on applying for an ATAS certificate: