Accordingly, the purpose of section 21(b) is to amend section 32(6) of the 1996 Act so that the onus is placed on a person alleged to have held, transported, recovered or disposed of waste – without requisite authorisation or in contravention of such authorisation – to establish that the activity concerned was not likely to cause environmental damage. We are switching the onus. I take the Senator's point, but discretion would obviously be exercised by the EPA.