Conn. Gen. Stat. § 22a-181

Notwithstanding the provisions of this chapter or any other provisions of law, if the commissioner finds that an air pollution emergency exists caused by adverse meteorological conditions, such as an inversion or a stagnant high pressure system, which requires immediate action to protect the public health or safety, he may order any person causing air pollution to reduce or discontinue air pollution immediately. If under any circumstances the commissioner finds any person is causing air pollution to such an extent as to require immediate action to protect the public health or safety, he may order such person to reduce or discontinue the air pollution immediately. Upon the issuance of any such order, the commissioner shall fix a place and time, not later than forty-eight hours thereafter, for a hearing to be held before him. Not more than twenty-four hours after the conclusion of such hearing, and without adjournment thereof, the commissioner shall affirm, modify or set aside his order.