5.—(1) Despite the amendments made by section 36 of the Act (which substitutes section 76 of the Water Industry Act 1991), an existing prohibition or restriction continues in force until 31st October 2010 unless, before that date, it—
(a)expires; or
(b)is varied or revoked under paragraph (2).
(2) A water undertaker may vary or revoke an existing prohibition or restriction before 31st October 2010 as if it were a prohibition issued under section 76 of the Water Industry Act 1991, as in force on 1st October 2010.
(3) A variation must not extend the period of an existing prohibition or restriction beyond 31st October 2010.
(4) In this article, “an existing prohibition or restriction” means a prohibition or restriction in force on 30th September 2010 under section 76 of the Water Industry Act 1991, as in force on that date.