The ILA operates through its regional branches around the world. Branches may either represent individual states or regional groups of countries. Each branch is autonomous (although it operates under the approval of the Executive Council, which is elected by all the branches) and most organise seminars and meetings for their members locally. Some also establish local committees which study topics in parallel with the larger international ones. Representatives of each branch are elected to the Executive Council.

New branches may be established subject to the endorsement of the Executive Council.  For further information about the establishment of new Branches:  (ILA Constitution) and   Guidelines for the Establishment of new ILA Branches (24KB).