National Party leader Judith Collins doesn't support the traffic light system.
The alert level system will be replaced on December the 3rd, when the country moves to the new Covid-19 Protection Framework of red, orange and green settings.
Collins says it will cause confusion, but she told Morning Report she does support businesses requiring people to be vaccinated.
"It is simply going to add further confusion to people, and it is something that is not needed if we get 90 percent of people vaccinated."
Collins said there are issues in the traffic light system's legal framework, and she thinks Parliament will wind up having to fix the holes after it has been enacted.
"I'm very certain we'll be back in a very short period of time having to fix the errors, and that's why you don't shouldn't be doing this."
