Part 4is about mandatory product stewardship. This involves enabling regulations to be made that would require some persons to take, or not to take, specified action in relation to products.

Part 4 is about mandatory product stewardship. This involves enabling regulations to be made that would require some persons to take, or not to take, specified action in relation to products. Before regulations are made specifying liable parties for a class of products under Part 3 (co‑regulatory product stewardship), or requiring action to be taken in relation to products under Part 4 (mandatory product stewardship), the Minister must be satisfied that: The objects of this Act and the product stewardship criteria are also relevant to determining whether to accredit a voluntary arrangement under Part 2\. They are set out in Division 3 of Part 1.