Western Australia will tighten its hard border, stopping anyone who has been in Victoria for the past two weeks from entering.
Health Minister Roger Cook said the number of exemptions would be significantly reduced under the new restrictions beginning midnight on Thursday.
He said only specific workers, such as those in the transport and freight industry, will be permitted to cross the border.
"Everyone permitted to enter will be served with notice if they have been in Victoria within the last 14 days and will need to take a COVID test on day 11 while in WA or when symptoms develop," Mr Cook said.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
"Police will continue to perform checks on people in self-quarantine."
WA is also extending its state of emergency for another 14 days, until 23 July.
Police Commissioner Chris Dawson said the date was likely to be extended further, given the situation in other parts of the country.
"We are not immune from this virus," he said.
"It's for the public safety of everyone."
Residents in affected public housing towers who need access to support and assistance should call the Housing Call Centre on 1800 961 054. If you need a translator, first call 131 450. Both services are 24/7. More information can be found here.
People in Australia must stay at least 1.5 metres away from others. Check your state’s restrictions on gathering limits.
If you are experiencing cold or flu symptoms, stay home and arrange a test by calling your doctor or contact the Coronavirus Health Information Hotline on 1800 020 080.
News and information is available in 63 languages at sbs.com.au/coronavirus
