18.—(1) The amount prescribed for the purpose of section 173(1) of the 1972 Act (attendance allowance) is £22.80 for any period not exceeding 24 hours; and for this purpose a period of 24 hours shall begin at 3am.
(2) The amount prescribed for the purposes of sections 173(4) of the 1972 Act (financial loss allowance) is–
(a)for a period not exceeding 4 hours, £19.25;
(b)for a period exceeding 4 hours but not exceeding 24 hours, £38.50;
(c)for a period exceeding 24 hours, the aggregate of £38.50 and such amount specified in sub-paragraph (a) or (b) as is appropriate to the number of hours by which the period exceeds 24 hours.