20 C.F.R. § 418.1210
We will not consider events other than those described in § 418.1205 to be major life-changing events. Certain types of events are not considered major life-changing events for the purposes of this subpart, such as:
[71 FR 62931, Oct. 27, 2006, as amended at 75 FR 41086, July 15, 2010]