General information, not a personal recommendation
Use these guides to understand published UK immigration requirements and questions to check. Confirm the current rule on GOV.UK and obtain regulated advice for your own circumstances.
What this evidence is for
The purpose matters more than the document name
To obtain security clearance for specified sensitive subjects and courses where the scheme applies.
What the evidence may need to show
Useful features
- Correct course and CAH code information
- Institution details
- Research or module information where requested
- Valid ATAS certificate matching the course
Problems to notice early
Common evidence gaps
- Course details changed after the certificate
- ATAS requirement checked too late
- Wrong subject or institution information
- Assuming a CAS removes the ATAS requirement
01
Start with the rule
Identify the fact the route requires the applicant to prove.
02
Match the evidence
Check issuer, content, date, format and required period.
03
Check consistency
Names, addresses, dates and figures should agree across the application.
Primary source
Confirm the current evidence rule
Personal circumstances?
Verify a regulated professional →Know when a guide is no longer enough
Eligibility assessments, evidence reviews, application preparation and representation should be handled by a suitably regulated professional.