South Australia will open its borders to allow residents from the ACT into the state but remain closed to New South Wales.
The South Australian Transition Committee met on Tuesday morning and decided the new border restrictions would come into effect at midnight.
ACT residents will be able to enter the state without completing a 14 day mandatory quarantine while NSW residents will remain subject to the restrictions.
'Effective midnight tonight the requirement to quarantine will be lifted for people travelling between ACT and South Australia,' Police Commissioner Grant Stevens said.
South Australia announced it would open to residents from the ACT on Tuesday, allowing residents to travel to the state without spending 14-days in quarantine. The new restrictions will come into effect at midnight (Barossa Valley pictured)
SA Premier Steven Marshall (pictured left) said the restrictions would be altered in line with health advice. The state is expected to remain closed to NSW 'for the foreseeable future'
He said the 14 day quarantine would remain in place for NSW residents 'for the foreseeable future'.
'The advice from the Chief Public health Officer is that we want to see a better situation in terms of community transmission before we relax the restrictions on NSW,' Commissioner Stevens explained.
He said health authorities were looking for a period of at least two-weeks without community transmission in NSW before opening the border.
Travellers from the ACT will still be required to fill out approval forms and declarations they have not been outside the 'safe community transmission zone' prior to travelling.
'This is our way of assuring as best as possible that those people travelling between SA and other places have not exposed themselves unnecessarily to the risk of COVID-19 and bringing it into SA.
'You can only come from ACT by air because to come by road you would have to travel through NSW and then the 14 day quarantine period would apply.
SA Premier Steven Marshall previously said he would not do anything that was contrary to health advice.
The eased restrictions will allow families to be