Ill. Admin. Code tit. 26, § 218.20
a) The election authority shall:
2) determine whether the voter was entitled to cast a provisional ballot. The voter is entitled to cast a provisional ballot if:
b) Once it has been determined by the election authority that the voter was entitled to vote a provisional ballot, even though it had been cast in an incorrect precinct, the election authority shall select a team or teams of 2 duly commissioned election judges, one from each of the two leading established political parties in Illinois (currently the Democratic Party and Republican Party) to count the votes that are eligible to be cast on the provisional ballot. In those jurisdictions that use election officials as defined in Section 18A-15(h) of the Code, these duties may be performed by those election officials.
8) If a provisional ballot contains both valid votes that must be counted and invalid votes that cannot be counted:
B) if the provisional ballot was cast on a direct recording electronic voting device, the election judges shall mark the original provisional ballot as a partially counted defective electronic provisional ballot because it was cast in the incorrect precinct (or bear some similar notation) and proceed to either: