The Social Security (Claims and Payments) Regulations 1987

4.  [F1In this Schedule]

benefit week” means, if the beneficiary is entitled to a relevant social security benefit or would be so entitled but for failure to satisfy the contribution conditions or had not exhausted his entitlement, the week corresponding to the week in respect of which that benefit is paid, and in any other case a period of 7 days beginning or ending with such day as the Secretary of State may direct; and

[F2Income Support Regulations” means the Income Support (General) Regulations 1987]

relevant social security benefit” means F3... [F4incapacity benefit], severe disablement allowance, retirement pension[F5, [F6widowed parent’s allowance]] or widow's benefit.