Conn. Gen. Stat. § 4-252a

(b) No state agency or quasi-public agency shall enter into any large state contract, or amend or renew any such contract with any entity unless such contract contains a certification that such entity has not made a direct investment of twenty million dollars or more in the energy sector of Iran on or after October 1, 2013, as described in Section 202 of the Comprehensive Iran Sanctions, Accountability and Divestment Act of 2010, and has not increased or renewed such investment on or after said date.

(c) Each state agency and quasi-public agency shall include in the bid specifications or request for proposals for a large state contract a notice of the certification requirements of this section.

(d) Any entity that makes a good faith effort to determine whether such entity has made an investment described in subsection (b) of this section shall not be deemed to be in breach of the contract or in violation of this section. A “good faith effort” for purposes of this subsection includes a determination that such entity is not on the list of persons who engage in certain investment activities in Iran created by the Department of General Services of the state of California pursuant to Division 2, Chapter 2.7 of the California Public Contract Code. Nothing in this subsection shall be construed to impair the ability of the state agency or quasi-public agency to pursue a breach of contract action for any violation of the provisions of the contract.

(e) The provisions of this section shall not apply to any contract of the Treasurer as trustee of the Connecticut retirement plans and trust funds, as defined in section 3-13c , provided nothing in this subsection shall be construed to prevent the Treasurer from performing his or her fiduciary duties under section 3-13g .