(a) In this Chapter, "the period of retention", in relation to any of a participant's shares, means the period beginning on the date on which those shares are appropriated to the participant and ending on the second anniversary of that date or, if it is earlier -
(i) the date on which the participant ceases to be an employee or director of a relevant company by reason of injury or disability or on account of his or her being dismissed by reason of redundancy (within the meaning of the Redundancy Payments Acts 1967 to 2003),
(ii) the date on which the participant reaches pensionable age (within the meaning of section 2 of the Social Welfare Consolidation Act 2005), or
(iii) the date of the participant's death.
(b) In paragraph (a), "relevant company" means the company concerned or, if the scheme in question is a group scheme, a participating company and, in the application of paragraph (a) to a participant in a group scheme, the participant shall not be treated as ceasing to be an e
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