before the coming into force of these Regulations, a person is entitled to severe disablement allowance by virtue of having satisfied regulation 10(1) (a), (b), (f) or (ff) of the Social Security (Severe Disablement Allowance) Regulations 1984, as then in force; and

after the coming into force of these Regulations, he is a person in respect of whom any day is to be treated as part of one period of incapacity for work, within the meaning of section 30C(1) of the Social Security Contributions and Benefits Act 19929, which began before the coming into force of these Regulations, regulation 10 of the Social Security (Severe Disablement Allowance) Regulations 1984 shall continue to have effect as if regulation 3 of these Regulations had not been made.