Article 2(2) of the Waste and Contaminated Land (Northern Ireland) Order 1997 defines three sorts of controlled waste: household, industrial and commercial waste. The Order enables Regulations to be made whereby waste of any description is to be treated for the purposes of the provisions of Part II as being of one or other of those categories. Regulation 3 provides for certain descriptions of waste to be treated as household waste for the purposes of Part II of the Order, whereas regulation 6 pr