Tasmania will tighten coronavirus check-in measures at businesses and other venues and maintain a cautious approach to easing border restrictions.
From Wednesday, people aged over 16 will be required to check in at venues regardless of the amount of time they spend there.
Premier Peter Gutwein announced new locations, including supermarkets, accommodation, education settings and aged care facilities, will be required to phase-in QR code check-in throughout July.
"What we've seen occur across the country, with the Delta variant especially, there are times there have been minimal brush-past contact which has led to the transmission of the virus," Mr Gutwein said.
Tasmania has no active COVID-19 cases and has been largely free of the virus since a deadly outbreak in the northwest at the beginning of the pandemic.
As some mainland states ease lockdown measures, Mr Gutwein said Tasmania would keep a cautious approach to its borders.
He said any changes with Queensland, which has removed lockdown requirements for some regions, aren't likely until next week.
Tasmania is closed to southeast Queensland, as well as Townsville, a host of local government areas in NSW including Sydney, as well as Perth and Darwin.
Earlier this week, Mr Gutwein urged Tasmanians to reconsider their need to travel interstate.