"That's almost a blunt commitment," he added.

The snap, seven-day lockdown of regional and rural NSW was today extended a further week, now due to be lifted on August 28.

The deputy premier said the state government would be "looking at an LGA (by LGA) approach".

The decision to let certain regions out of lockdown earlier, Mr Barilaro said, would be based on whether there are any active COVID-19 cases, sewage detection of virus fragments, and whether there are adjoining LGAs of concern with high case numbers.

"If you tick any of those boxes you won't be coming out (of lockdown)", he said.

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Mr Barilaro also said he is "confident" that as of Monday, August 30, students in regional and rural NSW will be able to resume school as normal.

While the announcement of the initial statewide lockdown came only hours before it began, the deputy premier has suggested the state will be given more notice about the lockdown lifting.

"The sooner you can make an announcement the better," he said.

"If we're going to come out next Saturday evening, I'd like to know that the pubs and cafes have restocked and [are] ready to go and have their staff in line [and that] those plans can be made well in advance."

While Mr Barilaro believes most of regional and rural NSW "will come back to the freedoms we had before the lockdown" after next Saturday, there are certain regions - such as Dubbo - that he sees being the subject of further stay-at-home orders.

When asked how he can be so confident certain parts of the state will come out of lockdown, considering the growing number of cases across the state, the deputy premier said it is because of the 14-day incubation period for the virus.

"If we're finding that only a small number of LGAs could come out after applying the criteria you may be better off just leaving everything locked down, but we're not seeing that," he said.

"All the data clearly shows the issue is central west; it's contained predominantly to the central west and the far west."

The deputy premier also spoke about the two new COVID cases in Queanbeyan and one in Goulburn, all involving people who work in the ACT.

Mr Barilaro said "there is already a level of protection" to prevent the spread of COVID into neighbouring regions with no cases, including tough border conditions, postcode restrictions and declaration forms.

"We'll be looking at the authorised workers list, working with our ACT counterparts to see if there are gaps or do we need to streamline or strengthen anything," he added.

Mr Barilaro said he was "absolutely" concerned about further cases stemming from the ones in Queanbeyan and Goulburn, with the Delta strain of COVID being highly transmissible.

"The reality here is ... one case is worrying," Mr Barilaro said. "Remember this all started with one case in Sydney."

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