The threshold for approval of the increase via electronic means.
The rules that are applied to consider whether an increase will be authorised. A value
of "none" advises that the rules provide for no increases. A value of "authority-required"
advises that an increase may be authorised and provides rules for the administration
of an increase.
The date when this increase was most recently updated.
Optionally:
The date when this increase became non-effective.
For future extensions.