Residents from western Victorian local government areas will be allowed to enter South Australia from midnight tonight.
The border changes were made at this morning's transition committee meeting, and will require Victorian travellers to undergo testing on day one, five and 13.
Police Commissioner Grant Stevens said travellers must isolate until they receive their first negative test result, and are not able to attend any high-risk locations such as aged care facilities.
Despite the changes, South Australia's tough border restrictions on Greater Melbourne will remain, as the city looks to get on top of a recent spike in COVID-19 cases.
Commissioner Stevens said the rise in active cases in Greater Melbourne have made the South Australian Government hesitant to relax restrictions for people from that area.
Residents living in cross-border communities will not be affected by the new border changes, with members still able to travel in the defined 70 kilometre border bubble.
People who are ordinarily reside in the VIC or NSW cross-border bubble, who have a permitted purpose to travel across the border, are not required to submit to the COVID-19 testing requirements.
Permitted travel purposes include; employment or education, providing care and support to, or receiving care and support from, another person, obtaining food, fuel, medical care or supplies, getting a COVID-19 vaccination, or recreational or competitive sport.
All existing directions, frequently asked questions and other information can be found here: https://www.covid-19.sa.gov.au/emergency-declarations
If you require further information you can call the SA COVID-19 Information Line on; 1800 253 787 between 9am to 5pm, seven days per week, or go to the SA Health website at www.sahealth.sa.gov.au