Units of local government and county officers may establish a process to allow people to select electronic notifications through an electronic notification delivery system for governmental mailings that are being sent by United States mail. Any process established for this purpose:
"By completing this form, I understand that I have agreed to be notified via email or other electronic means regarding those governmental notifications that I have selected. I understand that, regarding those issues for which I have selected electronic notification, I will possibly not receive notifications through the United States mail. I understand that any unit of local government or county officer may rescind this agreement by electronic notification and that any unit of local government may also notify me regarding any issue through the United States mail if the unit of local government or county officer desires in addition to the electronic notification I have selected."; and
50 ILCS 55/15