Each member in a TimeBank has associated privileges (e.g. roles) which allow them to take various actions on the web site.
All new members are given the role "Applying Member" which limits their ability to do much on the site without being approved.
All approved members are moved from the Applying Member role to the "Member" role which gives common functionality to all members (such as editing one's own profile, creating offers and requests, recording exchanges.)
Remaining permissions as listed below are all Coordinator roles.
Note that you can assign any member to one or more roles; the result for being assigned to multiple coordinator roles is that the member gets all permissions of the given roles.