(a) Who may access information.--The following individuals may file a written request for nonidentifying information or identifying information or contact with the court which finalized the adoption, the agency which coordinated the adoption or a successor agency:

(1) An adoptee who is at least 18 years of age.

(2) An adoptive parent of an adoptee who is:

(i) under 18 years of age;

(ii) adjudicated incapacitated and is 18 years of age or older; or

(iii) deceased.

(3) A legal guardian of an adoptee who is under 18 years of age or adjudicated incapacitated.

(4) A descendant of a deceased adoptee.

(5) A birth parent of an adoptee who is 21 years of age or older.

(6) A parent of a birth parent of an adoptee who is 21 years of age or older, if the birth parent consents, is adjudicated incapacitated or is deceased.

(7) A birth sibling of an adoptee, if both the birth sibling and adoptee are 21 years of age or older and:

(i) the birth sibling remained in the custody of the birth parent and the birth parent consents, is deceased or adjudicated incapacitated;

(ii) both the birth sibling and the adoptee were adopted out of the same birth family; or

(iii) the birth sibling was not adopted out of the birth family and did not remain in the custody of the birth parent.

(b) Who may be the subject of a request for information.--An individual enumerated under subsection (a) may request nonidentifying or identifying information regarding or contact with the following individuals:

(1) An adoptee who is 21 years of age or older.

(2) A birth parent of an adoptee.

(3) A parent of a birth parent of an adoptee who is 21 years of age or older, if the birth parent consents, is adjudicated incapacitated or is deceased.

(4) A birth sibling of an adoptee, if both the birth sibling and the adoptee are 21 years of age or older and:

(i) the birth sibling remained in the custody of the birth parent and the birth parent consents, is deceased or adjudicated incapacitated;

(ii) both the birth sibling and the adoptee were adopted out of the same birth family; or

(iii) the birth sibling was not adopted out of the birth family and did not remain in the custody of the birth parent.