Ill. Admin. Code tit. 74, § 760.550 – Updating Apparent Owner Data

a) The administrator may utilize publicly and commercially available databases, as well as information obtained through data sharing agreements authorized by the Act, to find and update or add information for apparent owners of property held by the administrator.
b) The administrator may, but is not required to, update or add a mailing address or e-mail address for an apparent owner prior to sending notices required by the Act.
c) If a required notice has already been sent by the administrator, the administrator does not need to send a new written notice merely because a mailing address or e-mail address for an apparent owner has been subsequently updated or added.