If, where a vessel has sunk, capsized, been lost, or gone missing, it is unknown for three months whether a person who was actually on board the vessel at the time, or a person who was on board the vessel and went missing while the vessel was navigating, is alive or dead, or if the death of such a person becomes clear within three months but the time of death is unknown, then, for the purposes of applying the provisions concerning the payment of a benefit for which death is the ground for payment, that person is presumed to have died on the day on which the vessel sank, capsized, was lost, or went missing, or on the day on which the person went missing. The same applies where an aircraft has crashed, been lost, or gone missing, and it is unknown for three months whether a person who was actually on board the aircraft at the time, or a person who was on board the aircraft and went missing while the aircraft was navigating, is alive or dead, or where the death of such a person becomes clear within three months but the time of death is unknown.
船舶が沈没し、転覆し、滅失し、若しくは行方不明となつた際現にその船舶に乗つていた者若しくは船舶に乗つていてその船舶の航行中に行方不明となつた者の生死が三箇月間分らない場合又はこれらの者の死亡が三箇月以内に明らかとなり、かつ、その死亡の時期が分らない場合には、死亡を支給事由とする給付の支給に関する規定の適用については、その船舶が沈没し、転覆し、滅失し、若しくは行方不明となつた日又はその者が行方不明となつた日に、その者は、死亡したものと推定する。航空機が墜落し、滅失し、若しくは行方不明となつた際現にその航空機に乗つていた者若しくは航空機に乗つていてその航空機の航行中に行方不明となつた者の生死が三箇月間分らない場合又はこれらの者の死亡が三箇月以内に明らかとなり、かつ、その死亡の時期が分らない場合にも、同様とする。