Illinois Statutes Chapter 750. Families § 50/18.1a. Registry matches

(a) The Registry shall release identifying information, as specified on the applicant's Information Exchange Authorization or, if applicable, a Birth Parent Preference Form, to the following mutually consenting registered parties and provide them with any photographs or correspondence which have been placed in the Adoption/Surrender Records File and are specifically intended for the registered parties:

(b) If a registrant is the subject of a Denial of Information Exchange filed by another registered party or is an adopted or surrendered person, or the surviving relative of a deceased adopted or surrendered person, and a birth parent of the adopted or surrendered person completed a Birth Parent Preference Form and selected Option E, the Registry shall not release identifying information to either registrant or, if applicable, to an adopted person who has requested a copy of his or her original birth certificate, with the exception of non-certified copies of the original birth certificate released under Section 18.1b(e), and as to a birth parent who has prohibited release of identifying information on the original birth certificate to the adult adopted or surrendered person, upon the death of said birth parent.

(c) If a registrant has completed a Medical Information Exchange Questionnaire and has consented to its disclosure, that Questionnaire shall be released to any registered party who has indicated their desire to receive such information on his or her Illinois Adoption Registry Application, if information available to the Registry confirms that the consenting parties are biologically related, that the consenting birth relative and the child of the consenting adoptive parents or legal guardians are birth relatives, or that the consenting birth relative and the deceased wife or husband of the consenting surviving spouse are birth relatives.