Ill. Admin. Code tit. 86 § 720.100
As used in this Part:
"Department" means the Department of Revenue.
"Person" means any natural individual, firm, partnership, association, joint stock company, joint adventure, public or private corporation, limited liability company, or a receiver, executor, trustee, guardian or other representative appointed by order of any court. [35 ILCS 750/1-10]
"Prohibited purpose" means the use of State Tax Lien Registry information for survey, marketing, or solicitation purposes. Survey, marketing, or solicitation purpose does not include any action by the Department or its authorized agent to collect a debt represented by a tax lien appearing in the registry. [35 ILCS 750/1-30(d)]
"Registry" or "State Tax Lien Registry" means the public database maintained by the Department in which tax liens are filed in favor of and enforced by the Department. [35 ILCS 750/1-10]
Ill. Admin. Code tit. 86, § 720.100