18.—(1) Any sum paid to a person on an award of income support made to him by virtue of section 23(8) of the Act (effect of return to work after a trade dispute) shall be recoverable from him in accordance with this Part of these Regulations.
(2) In this Part, unless the context otherwise requires—
“available earnings” means the earnings, including any remuneration paid by or on behalf of an employer to an employee who is for the time being unable to work owing to sickness, which remain payable to a claimant on any pay-day after deduction by his employer of all amounts lawfully deductible by the employer otherwise than by virtue of a deduction notice;
“claimant” means a person to whom an award is made by virtue of section 23(8) of the Act;
“deduction notice” means a notice under regulation 20 or 25;
“employment” means employment (including employment which has been suspended but not terminated) in remunerative work, and related expressions shall be construed accordingly;
“pay-day” means an occasion on which earnings are paid to a claimant;
“protected earnings” means protected earnings as determined by an adjudicating authority, in accordance with regulation 19(2), under regulation 19(1)(a) or 24;
“recoverable amount” means the amount (determined in accordance with regulation 20(3) or (5) or regulation 25(2)(a)) by reference to which deductions are to be made by an employer from a claimant’s earnings by virtue of a deduction notice;
“repaid by the claimant” means paid by the claimant directly to the Secretary of State by way of repayment of income support otherwise recoverable under this Part of these Regulations.
(3) Any notice or other document required or authorised to be given or sent to any person under the provisions of this Part shall be deemed to have been given or sent if it was sent by post to that person in accordance with paragraph (6) of regulation 27 where that regulation applies and, in any other case, at his ordinary or last known address or in the case of an employer at the place of business where the claimant to which it relates is employed, and if so sent to have been given or sent on the day on which it was posted.