Regulation 7 Appliances and fittings to satisfy the essential requirements and to be safe
No person shall supply an appliance or a fitting which does not satisfy the essential requirements.
No person shall supply an appliance which, when normally used, is not safe; and, in this paragraph, “normally used” in relation to use means use—
when correctly installed and regularly serviced in accordance with the manufacturer’s instructions referred to in paragraph 1(2) of Annex I of the Directive (set out in Schedule 3);
within the normal variations of gas quality and pressure; and
in accordance with its intended purpose or in a way which can reasonably be foreseen.
No person shall supply—
an appliance to which the EC mark has not been affixed; or
a fitting in respect of which a fitting certificate has not been issued,
as required by the Directive.