Conn. Agencies Regs. § 31-237g-41
Upon receipt of any appeal over which the Board determines it has no jurisdiction due to (1) the untimely filing of the appeal; (2) lack of aggrievement on the part of the appealing party; (3) mootness of the appeal; or (4) any other reason, the Board shall assign such appeal a case number and, unless the Board determines that a hearing is necessary, thereafter issue a decision dismissing such appeal. The Board's determination of such jurisdictional issues may be based solely upon review and consideration of the records concerning such jurisdictional issues. Such dismissal decisions shall contain findings of fact and conclusions of law concerning the jurisdictional issues involved and otherwise comply with Section 31-237g-48 except that such dismissal decisions need not comply with subsections 31-237g-48(b) (4), 31-237g-48(b) (6), or 31-237g-48(b) (7). The Board may, at any time during the pendency of an appeal before it, issue, pursuant to this section of these regulations, a decision dismissing the appeal if the Board determines such appeal to be moot.
Conn. Agencies Regs. § 31-237g-41