| Date | Title | Description |
| 2/9/2012 | First day to apply (by mail or in-person) for absentee ballot | First day for any registered voter presently within the United States, to make application by mail or in person to the election authority for an official ballot. |
| 2/21/2012 | Last day to register to vote | Last day for registration or transfer of registration within the offices of the election authority. Precinct registration may apply to the City of Chicago and Cook County. Please check with these jurisdictions for registration deadlines. |
| 2/22/2012 | First day for grace period registration and voting | First day for grace period registration or change of address in the office of the election authority or at a location designated for this purpose by the election authority. |
| 2/27/2012 | First day for early voting | First day for early voting at the office of the election authority and permanent locations designated by the election authority. Temporary early voting locations may be established by the election authority, but are not required to maintain the same voting days and hours as the election authority. |
| 3/13/2012 | Last day for grace period registraion and voting | Last day for grace period registration or change of address in the office of the election authority or at a location designated for this purpose by the election authority. |
| 3/15/2012 | Last day for early voting | Last day for early voting at the office of the election authority and permanent locations designated by the election authority. Temporary early voting locations may be established by the election authority, but are not required to maintain the same voting days and hours as the election authority. |
| 3/15/2012 | Last day for EA to receive absentee application by mail | Last day for the election authority to receive application by mail from any registered voter presently within the confines of the United States. |
| 3/19/2012 | Last day to vote in-person absentee | Last day for any registered voter, presently within the confines of the United States, to vote in person at the election authority, municipal, township or road district clerk office who is authorized to conduct absentee voting. |