make provision about notices to be given, evidence to be produced and other procedures to be followed by employees and employers;

make provision for the consequences of failure to give notices, to produce evidence or to comply with other procedural requirements;

make provision for the consequences of failure to act in accordance with a notice given by virtue of paragraph (a);

make special provision for cases where an employee has a right which corresponds to a right under this Chapter and which arises under her contract of employment or otherwise;

make provision modifying the effect of Chapter II of Part XIV (calculation of a week’s pay) in relation to an employee who is or has been absent from work on ordinary or additional maternity leave;

make provision applying, modifying or excluding an enactment, in such circumstances as may be specified and subject to any conditions specified, in relation to a person entitled to ordinary, compulsory or additional maternity leave;

make different provision for different cases or circumstances.