6.—(1) A leave curtailment notice must be in writing and must state—
(a)where M curtails her ordinary maternity leave period, the date on which M’s ordinary maternity leave period is to end;
(b)where M curtails her additional maternity leave period, the date on which M’s statutory additional maternity leave period is to end.
(2) The date specified in the leave curtailment notice must be—
(a)at least one day after the end of the compulsory maternity leave period;
(b)at least eight weeks after the date on which M gave the leave curtailment notice to her employer; and
(c)where M curtails her additional maternity leave period, at least one week before the last day of M’s additional maternity leave period.
(3) In paragraph (2) “the end of the compulsory maternity leave period” means whichever is the later of—
(a)the last day of the compulsory maternity leave period provided for in regulations under Article 104(2) of the 1996 Order; or
(b)where section 85 of the Factories Act (Northern Ireland) 1965(1) (women not to be employed in factories within four weeks after birth of child) applies to M’s employment, the last day of the period in which an occupier of a factory is prohibited from knowingly allowing M to be employed in that factory.