This section (other than subsection (6)) shall not apply or have effect as respects contracts of employment entered into before the commencement of this Act.
6.—(1) Where, before the commencement of this Act, an employee has entered into a contract of employment with an employer, then, the employer shall, if so requested by the employee, furnish to the employee a statement under section 3 and, if so requested by the employee, there shall be added to the statement the particulars specified in section 4.
(2) An employer shall, within 2 months after the employer has been required to do so under subsection (1), furnish to the employee concerned a written statement in accordance with that subsection.