Terms of Reference:

1. To promote cooperation and exchange of knowledge in the area of mechanics of unsaturated soils including, as examples, expansive, collapsible, residual, arid, and compacted soils, and its relevance to the solution of engineering problems.
 
2. To promote the exchange of information about testing of unsaturated soils for geotechnical and geoenvironmental purposes.

3. To participate actively in the technical program of the next International Conference on Unsaturated Soils.

4. To promote benchmark exercises to establish the capabilities of current theoretical frameworks and prediction methodologies in unsaturated soil mechanics.

5. To promote TC6-sponsored sessions on unsaturated soils at ISSMGE sponsored international and regional conferences on soil mechanics and geotechnical engineering, and to support special geotechnical and geoenvironmental conferences on unsaturated soils.

6. To cooperate actively with other technical committees whose field of activity involves important questions related to unsaturated soils, for example, TC5 on the Geoenvironmental Geotechnics; JTC1 on Landslides.