Academic Technology Approval Scheme (ATAS)

The Academic Technology Approval Scheme (ATAS) is a Government verification scheme for International students. ATAS is compulsory for ALL International offer holders who are applying for a programme that requires ATAS clearance. This includes current students who wish to change programmes from a non-ATAS programme to an ATAS programme, student visitors and study abroad students.

Do I need to provide an ATAS clearance certificate?

Having an ATAS clearance certificate is mandatory for some undergraduate applicants who wish to study in the UK.

This will affect you if are from outside the UK and you plan to undertake any of the following undergraduate courses:


  • H402 MEng Aerospace Engineering with Pilot Studies
  • H404 MEng Aerospace Engineering with Pilot Studies with a year in Industry
  • H421 MEng Aerospace Engineering
  • H422 MEng Aerospace Engineering with a year in Industry
  • H301 MEng Mechanical Engineering
  • H303 MEng Mechanical Engineering with a year in Industry

Electrical Engineering and Electronics

  • H431 MEng Avionic Systems Studies


  • FGH1 MMath Mathematical Physics
  • F344 MPhys Theoretical Physics


  • F303 MPhys Physics

If the criteria above apply to you and you do not have an ATAS certificate, your Entry Clearance application will be refused.

It is your responsibility to check if this scheme applies to you.

What is a CAH3 code?

You will only need a CAH3 code if you are applying for a programme that requires an Academic Technology Approval Scheme (ATAS) certificate.

If this is the case, you will receive an ATAS Statement from us containing the relevant CAH3 code. This will enable you to submit an application with the Foreign and Commonwealth Office. If your programme does not fall under the ATAS scheme you will not need a CAH3 code and an ATAS certificate will not be required.

Further Information

Click on the following links to download further information:

The ATAS application is an online only process and is free of charge. The Foreign and Commonwealth Office (FCO) aim to process applications within 20 working days after the submission of the application. Processing times will increase between the months of April and September and can take 30 or more working days to complete. Details of applying for ATAS can be found on the Foreign and Commonwealth Office website.

If you require further help please contact

Information and assistance is also available from:

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