15.—(1) Subject to regulation 16 (persons not entitled to transitional additions), where the amount of a claimant’s domestic assistance addition in respect of his first benefit week is £10 or more and is greater than the amount (if any) of the severe disability premium for the purpose of calculating his applicable amount under Part IV of the General Regulations (applicable amounts), he shall be entitled to a special transitional addition of an amount equal to the difference between his domestic assistance addition and the severe disability premium.
(2) Where a claimant is not entitled to income support or a transitional addition, the amount of a special transitional addition under paragraph (1) to which he is entitled shall be reduced by the amount of any increase in his income.
(3) Subject to paragraph (4) a claimant shall cease to be entitled to a special transitional addition under paragraph (1) if–
(a)he ceases to be entitled to income support for a reason other than that his applicable amount under Part IV of the General Regulations (applicable amounts) does not exceed his income; or
(b)his applicable amount for the purposes of calculating his entitlement to income support falls to be determined under Schedule 4 to, or paragraphs 1 to 4, 13 and 18 of Schedule 7 to, the General Regulations (applicable amounts for persons in residential care and nursing homes or residential accommodation or hospital patients).
(4) Where a claimant ceases to be entitled to a special transitional addition–
(a)by virtue of paragraph (3)(a) he shall be re-entitled to such an addition of the same amount as previously if, within 8 weeks of ceasing to be so entitled, he becomes re-entitled to income support or a transitional addition under regulation 14(3);
(b)by virtue of paragraph (3)(b) he shall be re-entitled to such an addition of the same amount as previously if, within 8 weeks of his applicable amount falling to be determined under the provisions of the General Regulations referred to in paragraph (3)(b), he becomes entitled to income support on the basis that those provisions do not apply.