“12.—(1) An employee shall not be entitled to redundancy payment by reason of having been laid off or kept on short-time unless—

(a) he has been laid off or kept on short-time for four or more consecutive weeks or, within a period of thirteen weeks, for a series of six or more weeks of which not more than three were consecutive, and

(b) after the expiry of the relevant period of lay-off or short-time mentioned in paragraph (a) and not later than four weeks after the cessation of the lay-off or short-time, he gives to his employer notice (in this Part referred to as a notice of intention to claim) in writing of his intention to claim redundancy payment in respect of lay-off or short-time.

(2) Where, after the expiry of the relevant period of lay-off or short-time mentioned in subsection (1) (a) and not later than four weeks after the cessation of the lay-off or short time, an employee to whom that subsection applies, in lieu of giving to his employer a notice of intention to claim, terminates his contract of employment either by giving him the notice thereby required or, if none is so required, by giving him not less than one week's notice in writing of intention to terminate the contract, the notice so given shall, for the purposes of this Part and of Schedule 2, be deemed to be a notice of intention to claim given in writing to the employer by the employee on the date on which the notice is actually given.”