Conn. Gen. Stat. § 8-37hh

(b) The applicant for such hearing, if aggrieved, may appeal therefrom in accordance with section 4-183 . Appeals from decisions of said commissioner shall be privileged cases to be heard by the court as soon after the return day as shall be practicable.

(c) The commissioner may, for good cause shown by an aggrieved person, extend the time for filing an appeal to Superior Court beyond the time limitations of section 4-183 , as set forth below:

(1) Any aggrieved person who is authorized to appeal a decision of the commissioner, pursuant to subsection (b) of this section, but who fails to serve or file a timely appeal to the Superior Court pursuant to section 4-183 , may, as provided in this subsection, petition that the commissioner, for good cause shown, extend the time for filing any such appeal. Such a petition must be filed with the commissioner in writing and contain a complete and detailed explanation of the reasons that precluded the petitioner from serving or filing an appeal within the statutory time period. Such petition must also be accompanied by all available documentary evidence that supports or corroborates the reasons advanced for the extension request. In no event shall a petition for extension be considered or approved if filed later than ninety days after the rendition of the final decision. The decision as to whether to grant an extension shall be made consistent with the provisions of subdivision (2) of this subsection and shall be final and not subject to judicial review.

(2) In determining whether to grant a good cause extension, as provided for in this subsection, the commissioner, or the commissioner's authorized designee, shall, without the necessity of further hearing, review and, as necessary, verify the reasons advanced by the petition in justification of the extension request. A determination that good cause prevented the filing of a timely appeal shall be issued in writing and shall enable the petitioner to serve and file an appeal within the time provisions of section 4-183 from the date of the decision granting an extension. The circumstances that precluded the petitioner from filing a timely appeal, and which may be deemed good cause for purposes of granting an extension petition, include, but are not limited to: (A) Serious illness or incapacity of the petitioner which has been documented as materially affecting the conduct of personal affairs; (B) a death or serious illness in the petitioner's immediate family that has been documented as precluding the petitioner from perfecting a timely appeal; (C) incorrect or misleading information given to the petitioner by the agency, relating to the appeal time period, and shown to have been materially relied on by the petitioner as the basis for failure to file a timely appeal; (D) evidence that the petitioner did not receive notice of the agency decision; and (E) other unforeseen and unavoidable circumstances of an exceptional nature which prevented the filing of a timely appeal.