(1)  For the purposes of this Act, the best practice environmental management of an activity is the management of the activity to achieve an ongoing minimization of the activity's environmental harm through cost-effective measures assessed against the current international and national standards applicable to the activity.

(2)  In determining the best practice environmental management of an activity, regard must be had to the following measures:

(a) strategic planning by the person carrying out, or proposing to carry out, the activity;

(b) administrative systems implemented by the person, including staff training;

(c) public consultation carried out by the person;

(d) product and process design;

(e) waste prevention, treatment and disposal.

(3)  Subsection (2) does not limit the measures to which regard may be had in determining the best practice environmental management of an activity.