In these regulations “the Act” means the Social Security Act 1975, and “the 1984 Act” means the Health and Social Security Act 1984.

Any reference in these regulations to a person's father, mother, son, or daughter includes a reference to his step-father, step-mother, step-son or step-daughter, as the case may be, and a person shall be treated as such a relative if he would be such a relative if some person born illegitimate had been born legitimate.

In determining whether a day falls within a period of interruption of employment, the provisions of section 17(1) of the Act (days for which unemployment, sickness and invalidity benefit are payable) and of any regulations made under section 17(1) and (2) shall have effect for the purposes of severe disablement allowance as they have effect for the purposes of invalidity benefit.

References in regulations 5(b) and 6 to a person being entitled to a severe disablement allowance and in regulation 20 to a person being entitled to a non-contributory invalidity pension include a reference to a person who would be entitled to a payment of such an allowance or, as the case may be, such a pension but for any provision of the Social Security (Overlapping Benefits) Regulations 1979.

Unless the context otherwise requires, any reference in these regulations to a numbered regulation is a reference to the regulation bearing that number in these regulations and any reference in a regulation to a numbered paragraph is a reference to the paragraph of that regulation bearing that number.