(1)The Secretary of State may by order make provision for requiring the person responsible for the use of any heat generator which has passed a test carried out in accordance with an on-site testing order to affix to that generator the data plate supplied by the testing authority for that generator in accordance with any provision of the order.
(2)The Secretary of State may also by order prohibit any person from affixing to any heat generator subject to on-site testing, with intent to deceive, —
(a)any data plate other than an official data plate; or
(b)any other mark or device;
which purports to be or resembles a data plate in the form prescribed under section 9 of this Act for generators of the description in question.
In this subsection " official data plate " means, in relation to any heat generator, a data plate supplied by a testing authority for that generator in accordance with an on-site testing order.