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Details
This resource book contains the information you need for reference during Immigration Advice Authority (IAA) level 1 exams.
The exam resource book is dated May 2026 and in the interests of fairness to exam candidates, IAA assessment questions will be based on the law contained within these documents at the time of writing.
Updates to this page
Last updated:
2 June 2026
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May 2026 edition published.
The December 2025 resource book has now been uploaded.
This version of the resource book contains the law as of 1 September 2025.
Updated PDF now includes working links.
This version of the Resource Book has been updated to include minor amendments to the Immigration Rules now brought into force (on 12 March, 2 & 9 April 2025) by Statement of Changes HC733 published on 12 March 2025.
This version of the Resource Book has been updated to include the following:
- Minor amendments to the Immigration Rules now brought into force on 2 January 2025 and 18 February 2025.
- Upcoming amendments due to be brought into force on 11 March 2025, as outlined in Statement of Changes HC217, published on 10 September 2024.
New resource book for level 1 exams added, replacing the January 2024 version.
Level 1 exam book has been updated
Exam Resources Book LVL 1 has been updated
Updated Exam Resource Book LVL 1 now available
Updated Level 1 exam resource book.
The OISC Competence Assessment resource book has been updated for Level 1
Exam Resource Book Level 1 updated.
Updated version of the Exam Book
UPDATED Booklet attached.
Changed resource book
New resource book
Updated OISC Resource Book
Resource booklet updated.
Resource booklet updated
Resource booklet updated
Update to Level 1 Exam Resource Booklet - October 2014