For the purposes of paragraph 12(4)(a), if:
(a) a person is an eligible member of the Defence Force (within the meaning of the Defence Force Retirement and Death Benefits Act 1973 ); and
(b) the person becomes a continuous full - time Reservist as a result of an undertaking that is accepted under subsection 26(2) of the Defence Act 1903 before 1 July 2016; and
(c) the period of the undertaking is extended on or after that day;
then, in relation to service on or after that day, the person is taken to have become a continuous full - time Reservist on the day that period is extended.