Under the Church Representation Rules a new roll is to be prepared every six years and it is the responsibility of the Parochial Church Council (PCC) to prepare the new roll and maintain it.
Everyone on the existing roll, who wishes to be on the new roll, needs to complete a new application form.
Qualification criteria are set down, not by the PCC, but by the Church of England under the Church Representation Rules. If you wish to be on the new roll and meet the criteria which is set out on the application form.