9. After paragraph (2) of regulation 15 there shall be inserted the following paragraph:
“(2A) The operator or owner of an installation shall ensure that—
(a)its verification scheme, any modification of that scheme, and any note made pursuant to regulation 15A(l)(d) or (3)(d) or regulation 15C(b), is kept, at an address in Great Britain notified to the Executive, until the expiration of six months after such scheme or, as the case may be, modification of that scheme, has ceased to be current; and
(b)records, sufficient to show the matters described in paragraph 5 of Schedule 9, are kept at the address notified pursuant to sub-paragraph (a) of this paragraph until the expiration of six months after the scheme, pursuant to which they were compiled, has ceased to be current.”.