Ill. Admin. Code tit. 83, § 1325.200
g) The following modifications to a 9-1-1 Authority's existing 9-1-1 plan shall be filed for approval electronically at the link posted on the Department's website. The submission shall include a modified plan, consisting of the revised application prescribed in Section 1325.205. Modifications requiring Administrator approval shall include:
h) The following modifications to a 9-1-1 Authority's existing 9-1-1 plan need not be formally submitted to the Administrator for approval. While Administrator approval is not necessary for these modifications, the 9-1-1 Authority must provide written notification 10 business days prior to making the following changes: