Regulation 4 Intervals for inspection
The Chief Inspector for England shall ensure that every school in England to which section 9 of the Act applies is inspected by an inspector registered under section 10(1) of the Act—
(a)
(i)
in the case of a secondary school, on or after 1st September 1993 but before 1st August 1997;
(ii)
in any other case, on or after 1st September 1994 but before 1st August 1998; and
(b)
thereafter in either case, within four school years from the end of the school year when the last inspection took place.