20.—(1) Where the amount of income support has not already been repaid by the claimant, the Secretary of State shall serve a deduction notice on the employer of the claimant.
(2) A deduction notice shall contain the following particulars—
(a)particulars enabling the employer to identify the claimant;
(b)the recoverable amount;
(c)the claimant’s protected earnings as specified in the notification of award.
(3) Subject to paragraph (5), the recoverable amount shall be—
(a)the amount specified in the decision as having been awarded to the claimant by way of income support; reduced by
(b)the amount (if any) which has been repaid by the claimant before the date of the deduction notice.
(4) If a further award relating to the claimant is made the Secretary of State shall cancel the deduction notice (giving written notice of the cancellation to the employer and the claimant) and serve on the employer a further deduction notice.
(5) The recoverable amount to be specified in the further deduction notice shall be the sum of—
(a)the amount determined by applying paragraph (3) to the further award; and
(b)the recoverable amount specified in the cancelled deduction notice less any part of that amount which before the date of the further notice has already been deducted by virtue of the cancelled notice or repaid by the claimant.
(b)the recoverable amount specified in the cancelled deduction notice less any part of that amount which before the date of the further notice has already been deducted by virtue of the cancelled notice or repaid by the claimant.