South Australia will become the first state to ban single-use plastics after legislation passed the new laws on Wednesday.
Plastic straws and cutlery, along with other single-use plastic goods will face a statewide ban from 2021.
State parliament passed the new laws yesterday, with backing from both parties.
At this stage, other single-use items such as coffee cups have not been added to the list but could be at a later stage.
South Australia has a record of implementing legislation in protection of the environment, having previously been the first Australian state to ban single-use plastic bags and introduce a container deposit to encourage recycling.
The exact date for the ban to begin has not yet been determined.
It is understood that the delay is to allow businesses time to adapt to the change away from single-use plastics.
Several businesses around Adelaide, including Adelaide Airport have already taken steps to stop using single-use plastics.