State and territory governments across Australia are tightening border restrictions with Victoria after thousands of interstate travellers were potentially exposed to COVID-19 at Melbourne Airport.
There are now 13 coronavirus cases linked to Melbourne's Holiday Inn, with the state now entering a five-day snap lockdown.
There are also new potential community infection sites across Melbourne.
READ MORE: Victoria enters five-day snap lockdown
Of most concern to health authorities is the Brunetti cafe at Melbourne Airport.
An infected staff member worked there on Tuesday – potentially spreading the virus to interstate travellers before they boarded their planes.
All states and territorities except for New South Wales have now implemented tough border controls on those coming in from Victoria, while NSW is choosing to mimick Victoria's hard lockdown for those coming across the border.
However, each state is taking a slightly different approach to exactly how those rules are enforced – and at what date they commence.
Here's a breakdown of each state's rules for travelling to Victoria.
Queensland
Queensland will close its borders to Greater Melbourne for two weeks from tonight, the state's Deputy Premier Steven Miles has announced.
This encompasses 36 Local Government Areas and comes into effect at 1am on Saturday.
Mr Miles said the 14-day border closure "won't make much practical difference" for the first five days, as the whole of Victoria will be in hard lockdown with residents unable to leave home.
LIVE UPDATES: Victoria enters five-day 'circuit breaker' lockdown
However, he said the longer two-week period will allow Queensland contact tracers time to contact and test the more than 1500 people now in Queensland who passed through Terminal Four of Melbourne Airport while an infected worker was there.
Health authorities are racing to contact the people who passed through Terminal 4 at Brisbane Airport on January 9, who will be required to self-isolate for two weeks and test for the virus.
The decision comes after Queensland health bosses held emergency talks with Victorian authorities earlier today.
There are no new cases of coronavirus in Queensland today, either locally acquired or in hotel quarantine.
READ MORE: Bottling of Australia's locally-made COVID-19 vaccine to begin
The result comes from 7110 tests conducted in the previous 24 hours.
There are now just six active cases remaining in the state.
New South Wales
A staunch advocate of open borders, NSW Premier Gladys Berejiklian ruled out shutting the border to Victoria just this morning, hours before Victoria's snap lockdown was announced.
Instead, the state will mimick Victoria's five-day hard lockdown for all returned Victorian travellers.
Under a new state-wide Order, anyone arriving in NSW from Victoria after 11.59 tonight must remain at their home or place of residence for the five-day period announced by the Victorian Government.
They will be required to follow the same rules as are in place in Victoria, meaning they cannot leave home except for four essential reasons: shopping for essential items, exercise, essential work and to seek or provide medical or other care.
For NSW residents living along the Victorian border, the five-day stay-at-home requirement will only apply to people who have visited Greater Melbourne after 11.59 tonight. It will not apply to NSW border residents who travel into regional Victoria.
READ MORE: Victoria's lockdown explained: What you can and can't do
In addition, anyone attempting to enter New South Wales from Greater Melbourne by road will be required to fill out a declaration form.
This requirement is already in place for those travelling by air or rail.
Despite labelling the Holiday Inn cluster "concerning", Ms Berejiklian said that there was "no reason for us to close the border".
"The one and only occasion where we have closed the border was to Victoria and that is when they had in excess of 150 cases a day," she said.
"We are nowhere near that. At this stage we think it is manageable."
Increased screening measures are in place at Sydney Airport to monitor travellers coming in from the areas impacted by Melbourne's Holiday Inn cluster.
Hundreds of NSW returned travellers will have to undergo 14 days in self isolation after a worker at a Melbourne Airport cafe tested positive.
NSW Health is currently contacting 7000 returned travellers who passed through the airport between February 7 and February 9, directing them to get a COVID-19 test and isolate until they receive a result.
Anyone who was at Terminal Four of Melbourne Airport between 4.45am and 2pm on February 9 is being told they must isolate for 14 days.
NSW Health is now "strongly advising" against travelling to Victoria unless it is essential.
Northern Territory
The Northern Territory has banned Victorian travellers from entering the state.
The whole of Greater Melbourne has been declared a COVID-19 hotspot, meaning anyone attempting to enter after that time obliged to undertake a 14-day quarantine at Howard Springs.
The change came into effect as it was announced at 10.45am today.
Additionally, for the first time Melbourne's Tullamarine Airport is being included in this hotspot designation.
This means anyone transitting through Melbourne from other states or territories will have to quarantine, regardless of where they started their journey.
Passengers on board flights scheduled to arrive in the territory this afternoon have already been notified of the requirements.
Anyone who has arrived from greater Melbourne including the airport since February 7 must self isolate and get tested.
Western Australia
West Australian Premier Mark McGowan has implemented a hard border with Victoria for 72 hours, starting at 6pm AWST (9pm AEDT) tonight.
This means that only exempt travellers will be allowed into Western Australia, including government officials, the military and freight drivers.
Compassionate reasons are also possible including for returning WA residents.
Mr McGowan said those exempt people will have to do 14 days of self isolation – not hotel quarantine – and be tested for COVID-19.
He said the measures were needed to be "extra cautious."
Currently, Victorians seeking to enter WA have to quarantine for 14 days and return a negative COVID-19 test.
It comes as border restrictions for NSW residents entering WA are removed, with the state now classed as "very low risk".
ACT
Australia's capital is also tightening its border restrictions with Victoria, starting at 11.59pm tonight.
Anyone who enters the ACT after that time will have to self-isolate for 14 days.
Crucially, the state isn't backdating this requirement so anyone who enters before that time will be free to move around.
It comes after Victorian MPs were advised to return to Canberra before midnight tonight so they can attend parliament next week.
A note from the Usher of the Black Rod to senators on Friday warned them that border restrictions were likely to change.
South Australia
South Australia had already closed its borders to Greater Melbourne from midnight on Wednesday.
As of Friday evening those measures were taken further, with restrictions on visiting care homes as well as a ban on transiting through Melbourne.
The bordertown checkpoint and COVID testing site on the Western Highway from Kaniva to the SA border re-opened.
While Victorians living within 70km of the Victoria/South Australia border are restricted to enter South Australia unless they are permitted to leave their home for; shopping for necessary goods/services (one person per household per day), caregiving reasons, permitted education, essential cross-border employment or providing care/support.
South Australian residents will be allowed to return, but have to self isolate for 14 days.
Meanwhile anyone in SA who has visited a COVID-19 hotspot in Victoria is required to quarantine for 14 days.
This includes anyone who passed through Terminal Four of Tullamarine Airport in Melbourne on February 9.
Households and contacts of those people will be required to isolate until their first negative COVID-19 test.
However, the current testing arrangements in place for people who have arrived from NSW and Western Australia will be lifted early, as of midnight tonight.
Tasmania
Tasmania is introducing a hard border to all of Victoria, Premier Peter Gutwein has announced.
From midnight tonight, the entire state will be classed as "high risk".
Mr Gutwein said if anyone tried to enter Tasmania from Victoria after the border closed, they would be denied entry unless they had approval from the State Controller.
The decision will be reviewed if Victoria's five-day lockdown lifts as planned on Wednesday night.
