In addition to co-ordinating many of their individual activities, WEDA, CEDA and EADA, work closely together on the following WODA activities involving the global professional dredging community:
- Official observership at the London Convention(LC) and its 1996 Protocol (LP) , where WODA is represented by CEDA. NEW: Training Set Extension for the Application of Low-technology Techniques for Assessing Dredged Material.
- Organisation of World Dredging Congresses
- WODA Expert Group Underwater Sound
- WODA Environmental Commission