(1) For this Act, professional engineering service —
(a) means an engineering service in an area of engineering that requires, or is based on, the application of engineering principles and data—
(i) to a design; or
(ii) to a construction, production, operation or maintenance activity, relating to engineering; but
(b) does not include an engineering service that is provided only in accordance with a prescriptive standard.
(2) In this section:
"prescriptive standard" means a document that states procedures or criteria—
(a) for carrying out a design, or a construction, production, operation or maintenance activity, relating to engineering; and
(b) the application of which, to the carrying out of the design, or the construction, production, operation or maintenance activity, does not require advanced scientifically based calculations.