Conn. Gen. Stat. § 46b-546: Disclosure of identifying information and medical history.

(a) On request of a child conceived by assisted reproduction who attains eighteen years of age, a gamete bank or fertility clinic operating in this state that collected the gametes used in the assisted reproduction shall make a good faith effort to provide the child with identifying information of the donor who provided the gametes, unless the donor signed and did not withdraw a declaration under subdivision (2) of subsection (b) of section 46b-545. If the donor signed and did not withdraw the declaration, the gamete bank or fertility clinic shall make a good faith effort to notify the donor, who may elect under subsection (c) of section 46b-545 to withdraw the donor's declaration.

(b) Irrespective of whether a donor signed a declaration under subdivision (2) of subsection (b) of section 46b-545, on request by a child conceived by assisted reproduction who attains eighteen years of age, or, if the child is a minor, by a parent or guardian of the child, a gamete bank or fertility clinic operating in this state that collected the gametes used in the assisted reproduction shall make a good faith effort to provide the child or, if the child is a minor, the parent or guardian of the child, access to nonidentifying medical history of the donor.

(c) On request of a child conceived by assisted reproduction who attains eighteen years of age, a gamete bank or fertility clinic operating in this state that received the gametes used in the assisted reproduction from another gamete bank or fertility clinic shall disclose the name, address, telephone number and electronic mail address of the gamete bank or fertility clinic from which it received the gametes.