The VTTA is a National body for timr tialling for the over forties and administered through 16 Regional Groups. The groups are managed by their own elected bodies and are responsible for providing a programme of time trials and social events. Each Group has their own compeitions, and records. Group members can gain medals for achieving and then improving on their standard plus for the various racing distances. The groups are autonomous within the rules of the National Body.

There is no obligation to join your local Group, and indeed many members stay with one group, despite moving around the country. Some individuals do not join local clubs, but race as members of the VTTA.