Paragraph 3
This paragraph applies to any dwelling completed on or after the first day of April, nineteen hundred and sixty-four.
The last foregoing paragraph shall apply to any dwelling to which this paragraph applies but as if for references to the sums of one shilling and threepence, two shillings and sixpence and three shillings and ninepence there were substituted respectively references to those sums adjusted by—
dividing by the aggregate product of a penny rate for the areas of all local authorities in England and Wales for the year beginning on the first day of April, nineteen hundred and sixty-three, and
multiplying by the said aggregate for the year beginning on the first day of April, nineteen hundred and sixty-two,
and rounded off to the nearest penny.