substitute
(6) A gas appliance worker who gives a notice under subsection (4) must keep, for at least 5 years, a record of the notice including a record of—
(a) the unsafe gas appliance; and
(b) the premises where the appliance is located; and
(c) when the notice was given.
(7) A gas appliance worker who keeps a record under subsection (6) must produce the record if asked to do so by an inspector.