31.—(1) Where an employee is entitled to a period of leave under regulation 29 or 30, the employee may give a written notice to request a variation of that period of leave.
(2) A notice under paragraph (1) may—
(a)vary the start date or end date of any period of shared parental leave provided that the notice is given not less than eight weeks before the date varied and the new date;
(b)request that a single period of leave become discontinuous periods of leave or vice versa;
(c)cancel the leave requested provided that the notice is given not less than eight weeks before the leave cancelled by the notice is due to commence.
(3) A notice under paragraph (1) must state what periods of shared parental leave the employee is entitled to under regulation 29 or 30.
(4) A notice under paragraph (1) may not request leave with a start or end date which is outside of the period in which shared parental leave may be taken (see regulation 23(1)).
(5) Regulations 29 and 30 apply to a notice under paragraph (1) as they apply to a period of leave notice given in accordance with regulation 28; and for these purposes a reference in those regulations to a notice under regulation 28 (however expressed) is to be read as a reference to a notice under paragraph (1).