5 C.F.R. § 890.1102
In this subpart—
Gross misconduct means a flagrant and extreme transgression of law or established rule of action for which an employee is separated and concerning which a judicial or administrative finding of gross misconduct has been made.
Qualifying event means any of the following events that qualify an individual for temporary continuation of coverage under subpart K of this part:
[54 FR 52339, Dec. 21, 1989, as amended at 78 FR 64878, Oct. 30, 2013]