13. (1) Subject to subsection (2), a relevant parent who—

(a) is entitled under this Act to paternity leave and has not taken such leave, and

(b) becomes entitled to leave under section 16(1) of the Act of 1994,

may take paternity leave immediately after the end of the leave referred to in paragraph (b) or, where that leave is postponed under section 16B of the Act of 1994, the resumed leave taken by the relevant parent.

(2) Entitlement to paternity leave under subsection (1) shall be subject to the relevant parent concerned having notified in writing his or her employer (or caused his or her employer to be so notified) not later than the day on which such leave begins of his or her intention to take the leave concerned.

(3) A notification under subsection (2) may be revoked by a further notification in writing given by or on behalf of the relevant parent concerned to his or her employer within the period specified in that subsection for the giving of the notification concerned.