Ralph Regenvanu said the audit would also examine ways of reducing plastic use, recycling and alternative materials.
It followed the first stage of a ban this month on single-use plastic shopping bags, polystyrene takeaway boxes and plastic straws.
Mr Regenvanu said Foreign Affairs was the lead agency on this as it forms part of the National Oceans Policy.
He said the ultimate goal is to eliminate all single-use plastics going into the ocean.
"There's going to be a number of options. There are some items we can obviously ban outright like we did with the three items we just banned. But then of course there's options for container return, return and deposit schemes.
"That's seems to be something that is very successful in other jurisdictions. Having a levy which is charged and then people get given a refund for the return of a particular item."