The island state, which put up a hard border with Victoria on July 15 in response to a coronavirus outbreak, announced the mainland jurisdiction would no longer be considered high risk.

"The decision was made based on the current situation in Victoria," Tasmanian Public Health Director Mark Veitch said in a statement.

"Public health responses and lockdown have identified cases and limited onward spread, such that almost all recent cases were already in quarantine before they became infectious."

A number of premises in Victoria remain high risk, meaning people who've been to the venues cannot enter Tasmania.

Victorian arrivals quarantining in Tasmania will be allowed out from midnight, provided they haven't been to any high-risk areas across the country.

Victoria recorded six new local cases on Thursday, all of which are linked to current outbreaks and have been in isolation while infectious.

Tasmania, which hasn't had a COVID-19 community case since May last year, remains closed to NSW and has listed high-risk premises in Queensland and South Australia.

Australian Associated Press