In addition, the "significant gap" theory previously applied by several circuit courts was rejected. Under that theory, simultaneous coverage under a spouse's medical plan cut off COBRA eligibility unless there was a "significant gap" between the coverage available through COBRA and that of the other coverage. The Supreme Court rejected this theory because, among other things, it required inappropriate judicial intervention in determining whether a gap was significant and there was insufficient statutorily basis to sustain the theory.
If you have been administering your COBRA coverage on the premise that preexisting health coverage precludes the right to COBRA coverage, you will have to adjust your COBRA administration to conform to the Supreme Court's ruling. In many cases, COBRA notices and election forms will have to be revised. In some instances it may be necessary to provide a COBRA election to former employees who were previously denied COBRA coverage. However, IRS Announcement 98-22 stated that plan sponsors that have taken this approach would not be assessed excise taxes for any period up to the date of the Supreme Court's ruling. Consequently, it is important at a minimum to review your COBRA administrative policies on a going-forward basis.