Conn. Gen. Stat. § 22a-7b: Certificate showing compliance with order to correct or abate a polluted or environmentally hazardous condition.

Whenever the Commissioner of Energy and Environmental Protection has filed a copy of an order to correct or abate a polluted or environmentally hazardous condition, or notice thereof, on the land records in the town where the property is located, and such order has been fully complied with, the commissioner shall issue a certificate showing such compliance. The certificate shall be recorded on the land records in the town where the order was previously recorded.