4.—(1) An employment officer may, on a sampling basis, select a claimant to participate in an employment zone programme with a particular employment zone contractor provided that the claimant has asked to participate in an employment zone programme and—
(a)his personal circumstances place him at a significant disadvantage in obtaining employment; and
(b)he is ordinarily resident within an employment zone or his address for payment of his jobseeker’s allowance is located within an employment zone.
(2) The employment officer shall notify the claimant in writing that he is required to participate in the employment zone programme provided by that employment zone contractor.