The orders addressed the control of single-use plastic bags, plastic straws and polystyrene takeaway boxes, littering and the licensing of private waste operators.
From July 1, it would be an offence to manufacture, sell or give away single-use plastic bags, plastic drinking straws and polystyrene boxes.
The only exception would be the use of plastic to wrap and carry fish or meat.
On February 1 this year, new laws on littering took effect, with fines of US$45 for a first offence or US$90 for subsequent dumping of rubbish in public.