20.—(1) Subject to regulations 59 and 60 and Schedule A1(1) (treatment of claims for housing benefit by refugees), the applicable amount of a claimant shall be the aggregate of such of the following amounts as apply in his case—
(a)an amount in respect of his personal allowance, determined in accordance with paragraph 1 of Schedule 4;
(b)an amount in respect of any child or young person who is a member of his family, determined in accordance with paragraph 2 of that Schedule;
(c)if he is a member of a family of which at least one member is a child or young person, an amount determined in accordance with paragraph 3(1) of that Schedule;
(d)if he is a member of a family of which one member is a child under the age of one year, an additional amount determined in accordance with paragraph 3(2) of that Schedule;
(e)the amount of any premiums which may be applicable to him determined in accordance with Parts III and IV of that Schedule.
(2) In Schedule 4—
“additional spouse” means a spouse of either party to the marriage who is additional to the other party to the marriage;
“patient” means a person (other than a person who is serving a sentence of imprisonment or detention in a young offenders centre or a juvenile justice centre) who is regarded as receiving free in-patient treatment within the meaning of regulation 2(4) and (5) of the Social Security (Hospital In-Patients) Regulations (Northern Ireland) 2005(2).
See, for Schedule A1, paragraph 2(2) and (3) of Schedule 4 to S.R. 2006 No. 407