Opinion
The determinative issue in this appeal is whether the decision of the compensation review board (board), which affirmed the decision of the workers’ compensation commissioner that the defendants were collaterally estopped from relitigating the issue of causation, constitutes a final judgment or an otherwise appealable interlocutory order, thereby implicating our subject matter jurisdiction. 1 We conclude that the board’s decision does not constitute a final judgment or an appealable interlocutory order, and, therefore, this court lacks subject matter jurisdiction to review the merits of the claims of the named defendant, General Dynamics Corporation, Electric Boat Division (Electric *388 Boat), and its workers’ compensation insurance carriers, the defendants ACE USA (ACE) and St. Paul Travelers, Inc. (Travelers).
The following facts are relevant to our resolution of this case. The plaintiff, Patricia Levarge, is the dependent widow of Richard Levarge (Levarge). Levarge was employed by Electric Boat from 1956 through 1992, and, at various times during that employment, he was exposed to asbestos dust and debris. In 1991, Levarge had a cancerous polyp removed from his left vocal cord and was diagnosed with squamous cell carcinoma. Hospital records revealed that, in addition to asbestos exposure, Levarge had smoked approximately one and one-half packs of cigarettes per day for thirty years, regularly consumed alcohol and had a family history of laryngeal cancer. As a result of the diagnosis, Levarge underwent radiation therapy that initially was successful. Several months later, however, the carcinoma reappeared and spread to his lungs. Levarge stopped working at Electric Boat in November, 1992, and, on April 7, 1993, he died of respiratory arrest secondary to metastatic laryngeal cancer.
Pursuant to the federal Longshore and Harbor Workers’ Compensation Act, 33 U.S.C. § 901 et seq. (Long-shore Act), the plaintiff brought an action before the United States Department of Labor, claiming that Levarge’s exposure to asbestos while employed at Electric Boat constituted a work-related injury and that she therefore was entitled to receive benefits under the Longshore Act. On February 3, 1995, an administrative law judge with the United States Department of Labor agreed and awarded the plaintiff benefits under the Longshore Act. The judge found that Electric Boat, in its capacity as a self-insured entity, was responsible for paying those benefits. The decision did not apportion liability among the successive insurers in the case because the Longshore Act holds the last employer that *389 exposed the employee to injury responsible for compensation.
Eight years after the award of benefits under the Longshore Act, the plaintiff pursued survivor benefits under the state Workers’ Compensation Act, General Statutes § 31-275 et seq. On October 29, 2004, the workers’ compensation commissioner for the eighth district (commissioner), in response to a motion filed by the plaintiff, determined that Electric Boat was collaterally estopped from relitigating the issue of causation before him because that issue had been decided in the federal proceeding. In addition, the commissioner determined that ACE and Travelers also were collaterally estopped from relitigating the issue of causation because they were in “privity” with Electric Boat as its workers’ compensation insurance carriers. Thereafter, ACE appealed to the board, which affirmed the commissioner’s decision. On December 19,2005, Electric Boat, ACE and Travelers appealed to the Appellate Court pursuant to General Statutes § 31-301b. We subsequently transferred the appeal to this court pursuant to General Statutes § 51-199 (c) and Practice Book § 65-1.
ACE and Travelers claim that the board incorrectly concluded that they were collaterally estopped from litigating the issue of causation. First, they claim that the test for causation under the federal Longshore Act is different from the test for causation under the state Workers’ Compensation Act. Specifically, ACE and Travelers claim that, under state law, the plaintiff must prove that workplace exposure to asbestos was a substantial factor in causing Levarge’s cancer, whereas, under the Longshore Act, the plaintiff need only show that workplace exposure to asbestos was a contributing factor in causing Levarge’s cancer. Further, ACE and Travelers claim that they lacked privity with Electric Boat because they were unable to defend their interests during the proceedings before the Department *390 of Labor. Before addressing these issues, however, we first must address whether this court has jurisdiction to review the merits of this appeal. Our review of the decisions of the commissioner and the board makes it clear that we do not.
We begin by setting forth the governing legal principles that we recently summarized in
Hunt
v.
Naugatuck,
On remand, the commissioner must apportion liability among Electric Boat, ACE and Travelers pursuant to General Statutes § 31-299b. See,
e.g., Hatt v. Burlington Coat Factory,
In the present case, the record indicates that the commissioner has not apportioned liability, and, thus, on remand, the commissioner must decide to what extent Levarge’s injury was attributable to the periods of time during which ACE and Travelers served as Elec
*392
trie Boat’s insurance carriers. This determination will require a proceeding before the commissioner involving the production of evidence by all parties and a review of various medical and employment records. This court long has held that such a determination on remand will require the commissioner’s exercise of independent judgment and certainly will not be ministerial in nature. See
Hall
v.
Gilbert & Bennett Mfg. Co.,
Accordingly, we conclude that the board’s decision is not a final judgment. Therefore, we lack subject matter jurisdiction to review the merits of the case.
The appeal is dismissed.
In this opinion the other justices concurred.
Notes
In Lafayette v. General Dynamics Corp.,
