Ill. Admin. Code tit. 95, § 400.725
a) Authenticating or Identifying Evidence
2) Illustrations. By way of illustration only, and not by way of limitation, the following are examples of authentication or identification conforming with the requirements of this Section:
F) Telephone Conversations. Telephone conversations, by evidence that a call was made to the number assigned at the time by the telephone company to a particular persons or business, if:
H) Ancient Documents or Data Compilation. Evidence that a document or data compilation, in any form:
b) Evidence that Is Self-Authenticating
2) Extrinsic evidence of authenticity as a condition precedent to admissibility is not required for the following:
vi) a political subdivision, department, officer or agency of any of these political subdivisions.
C) Foreign Public Documents
i) A document purporting to be executed or attested to in an official capacity by a person authorized by the laws of a foreign country to make the execution or attestation, and accompanied by a final certification as to the genuineness of the signature and official position of:
• the executing or attesting person; or
• any foreign official whose certificate of genuineness of signature and official position relates to the execution or attestation or is in a chain of certificates of genuineness of signature and official position relating to the execution of attestation.
ii) A final certification may be made by a secretary of embassy or legation, consul general, consul, vice consul, or consular agent of the United States, or a diplomatic or consular official of the foreign country assigned or accredited to the United States. If reasonable opportunity has been given to all parties to investigate the authenticity and accuracy of official documents, the court may, for good cause shown:
• order that those documents be treated as presumptively authentic without final certification; or
• permit them to be evidenced by an attested summary with or without final certification.
L) Certified Domestic Records of Regularly Conducted Activity
The original or a duplicate of a domestic record of regularly conducted activity that would be admissible under Section 400.720(c)(6) if accompanied by a written certification of its custodian or other qualified person, in a manner complying with any Act of Congress or rule prescribed by the Supreme Court pursuant to statutory authority, certifying that the record was: