Premier Peter Gutwein provided an update on Wednesday afternoon in response to the further spread of the NSW outbreak.

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The AFL had been considering Launceston and Geelong for the relocated Fremantle-Carlton match on Saturday, but Mr Gutwein said the match would not be held in Tasmania.

"That will disappoint many people especially Carlton supporters ... we've just advised the AFL of that decision," he said.

"We don't expect that this will have any further implications for the roster moving forward."

All Tasmanian will be required to use the Check in TAS app when entering supermarkets, shopping centres and big box retailers such as Bunnings from next week, with the specific date to be confirmed.

Mr Gutwein said these facilities were already in place at the vast majority of affected businesses, and he expected Tasmanians would do the right thing for contact tracing reasons.

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Masks will only become mandatory for attendees at the Festival of Voices in Hobart from tonight onwards.

"[We will] continue to review the need to extend mask wearing to other events and activities," Mr Gutwein said.

"That will be an ongoing process as we normally do with our current restrictions."

Tasmania has in place border restrictions with Queensland, NSW, Western Australia and Northern Territory with a range of high risk areas identified. They are listed here.

With locally-acquired cases detected in South Australia, Tasmania became the last state to be directly impacted by the NSW outbreak.

Five cases in one family were confirmed in SA, linked to the Granites gold mine in the Northern Territory. The state did not announce a lockdown, but masks have been made mandatory in public and home gatherings limited to 10 people.

Alice Springs was placed in lockdown after a person spent seven hours in the airport while infectious.

Queensland recorded three new locally-acquired cases, but all were close contacts of previous cases.

NSW recorded 22 new cases, all linked to confirmed cases with 11 already in isolation while infectious.

There was one new locally-acquired case in Western Australia who was already in quarantine.

Victoria also recorded one new case today, who was a primary contact of a previous case.