Premier Peter Gutwein has confirmed Tasmania's border will open to Victoria from midnight as originally flagged.
Victoria will be designated a low-risk area for COVID-19, meaning people can travel between the two states unless they have been to an area identified as high risk.
On Wednesday, Tasmania's director of public health Mark Veitch said Tasmania would open its borders provided there was no evidence of community risk within 48 hours.
Victoria announced three new locally acquired infections on Friday, all from the same family. All of them have been in quarantine while infectious.
Mr Gutwein praised Victoria's quick response to the recent outbreak.
"I'm pleased that because of the fast action that was undertaken in Victoria in response to their cases, the contact tracing that went on, and the way that they responded, the situation has been kept in check," Mr Gutwein said.
Vaccine to arrive sooner
The Tasmanian government also announced the COVID-19 vaccine will arrive in the state on Sunday, with vaccinations to begin in Hobart on Tuesday.
Border control and quarantine support staff, nurses involved in administering vaccines, and emergency department and intensive care staff will be among the first to receive the vaccine.
Health Department secretary Kathrine Morgan-Wicks said it would be a "slow and steady" rollout.
She said 100 workers a week would be vaccinated for the first three weeks, with the rollout ramping up after that.
The vaccine program will expand to hubs at Launceston General and North West regional hospitals from March 16.
Public Health has also reported a significant increase in Tasmanians getting COVID tests, with more than 2,400 tests conducted in the past three days.
