The Police Commissioner is warning Aucklanders leaving the city when the border opens they could be stopped anywhere, anytime, to check they're complying with the rules.
Only those who are fully vaccinated or have tested negative for Covid-19 will be allowed out of the city from mid-December.
Andrew Coster told Morning Report there will be checkpoints, as well as random spot checks, and anyone not following the rules will face the consequences.
"We all know what the expectation is, we certainly will do by the time the date rolls around, people should expect that if they're not compliant, they're very likely to get fined."
Police won't be checking every single vehicle to avoid creating too much congestion.
"We'll be looking to do it in a way where we're not slowing down flow of holiday traffic in any significant way.
"Obviously, the reason there's not a hard border around Auckland is in large part because of the logistics of achieving that.
"So, we'll be keeping the traffic flowing as best we can. You know, there are lots of different places that we can choose to do this that will keep the flow going."
Coster said police will also combine checks with other road policing duties like breath checking to maximise their benefit.