The state leader responded to a question at a Sydney news conference about frustrations being experienced on the state's southern frontier and asking if she would visit the border.

Mrs Berejiklian did not say if she planned to visit and but noted under the earlier system there had been more than 200,000 permits given.

"It would have been far easier for us to do what Queensland did to us," Ms Berejiklian said.

"We could have very easily said 'that's the hard border, that's it', but we didn't because we respect and appreciate that those communities on the NSW-Victoria border have lived as one for a century.

"We understand that and that's why we're going to so much effort to support them and I appreciate that there's always a fine line, it's never perfection, but the new system is only just come in and the Health Minister and I have also discussed, of course based on health advice, if we need to tweak anything we will.

"In the first instance you have very good exemptions for work, for education, for health, for essential work, there's a lot of categories where people are freely, still with the permits, moving back and forth."

Ms Berejiklian pointed to Wodonga residents being potential coronavirus transmitters.

"We can't stop Wodongians from going to other parts of Victoria...we'd encourage them not to, but we can't stop them and so please know why we've done this, it's to keep the community safe and make sure we do the right things by the border communities but also to keep the rest of NSW safe," she said.

Ms Berejikilian said she had spoken at length to her Victorian counterpart Daniel Andrews about the closure.

"He understands our position and supports it," she said.

"I appreciate that for border communities it's very difficult but the amount of resources, policing, health experts, Service NSW, the permits - there's been so much resourcing given to support our border communities."