Each forum is able to set up a certain number of working groups and task forces focusing on specific policy issues. Each working group has a specific objective, scope and mandate for example preparing a position paper on a particular topic or managing activities such as a European project or campaign.

Each working group consists of individuals, nominated by member cities, who are considered as having relevant knowledge and expertise. Each working group is chaired by a member city, which is also responsible for reporting back to the relevant forum on the results achieved.

A task force can be set up to address issues with a more limited scope. The task force is a temporary group that has a specific mandate, scope, timeframe and strategic purpose.