UNAT dismissed the appeal and affirmed the UNJSPB decision.
UNAT recalled that at the time of Mr. Arigon’s entry into participation in 2002, Article 24 did not allow him the option to restore his prior contributory service because that option was limited to participants whose previous period of contributory service was less than five years and who had received a withdrawal settlement; neither of which applied to him. When the 2007 amendment to Article 24 was introduced, he had a one-year window, from 1 April 2007 to 1 April 2008, during which he could elect to restore his prior period of...