Conn. Agencies Regs. § 12-213-1
(b) "Extended due date" means a date (subsequent to the due date on or before which any document is required to be filed with, or any payment is required to be made to, the commissioner) requested by a company for filing such document or making such payment if— (1) the commissioner is empowered under chapter 208 to grant such request for extension;
(Effective July 6, 1989)