The Northern Territory has opened its borders to travellers who are fully vaccinated against COVID-19, as quarantine requirements for arrivals end.
Travellers now have to return a negative PCR test taken within three days of their arrival in the territory.
They also need to get re-tested within three days of arriving and again on their sixth day in the NT.
Unvaccinated travellers have been barred, with only returning residents exempt.
Travellers will need to show proof they are vaccinated or evidence they are ineligible for the jab.
Tests are free at NT government coronavirus testing facilities and travellers are not required to isolate while they wait for the results.
Authorities are also handing out free rapid antigen test kits at the airport for use at home if people develop symptoms.
Arrivals must stay in high vaccination areas, such as Darwin and Alice Springs.
They are also required to download the G2G Now app and complete location check-ins when ordered.
Most travellers are banned from dozens of remote communities where vaccination rates remain below 80 per cent
Unvaccinated people who try to get into the territory will be turned away and could face a fine of more than $5000.
Those allowed in must quarantine at their own expense for 14 days.