(1) In particular, but without limiting what constitutes taking reasonable steps as required by section 11, 13 or 14 for the purpose of the application of those sections to the use of plant or a substance, an operator on whom an obligation is imposed under section 11, 13 or 14 is taken to have taken such reasonable steps as the relevant section requires if subsection ( 2) applies.
(2) This subsection applies if:
(a) the operator ensured, so far as practicable, that the use of the plant or substance was in accordance with the information supplied by the manufacturer or the supplier of the plant or substance relating to the use of the plant or substance in a manner that ensures the health and safety of employees, contractors or other persons who use it; and
(b) it was reasonable for the operator to rely on that information.