Tasmania is closing its border with seven local government areas in Sydney in response to a growing number of coronavirus cases in the NSW capital.
The City of Sydney, Randwick, Inner West, Woollahra, Waverley, Canada Bay and Bayside will be considered high risk from 4pm on Wednesday.
Anyone who has been in the regions on or since June 11 won't be allowed to enter Tasmania unless given special permission by the deputy state controller.
Tasmanians returning home who have been in any of the high-risk areas will be required to quarantine for 14 days at a suitable premises.
Transit through high-risk areas directly to the airport is allowed under existing arrangements.
NSW recorded 13 new coronavirus cases on Wednesday following a "super-spreader" event, prompting a raft of new restrictions for people in metropolitan Sydney.
Tasmania's Public Health Director Mark Veitch has urged anyone in the state who has been in NSW since June 11 to monitor for symptoms and check the list of specific high-risk venues.
Anyone in Tasmania who has been at the high-risk venues must immediately self-isolate and contact the public health hotline.
