For the fourth consecutive day, NSW has not recorded a single locally acquired case of COVID-19.
Two new cases of COVID-19 in returned travellers were diagnosed in the 24 hours to 8pm on Monday night, bringing the total number of cases in NSW to 4031.
NSW Health said on Tuesday there were 6381 tests reported in the 24-hour reporting period, compared with 6353 in the previous 24 hours.
The department is again urging people to remain vigilant and come forward for testing immediately if symptoms like a runny nose, scratchy throat, cough or fever appeared.
With NSW school holidays starting on Friday, testing was particularly important as more people moved around the state.
NSW Health is treating 55 COVID-19 cases, including three in intensive care, none of whom are being ventilated. Eighty-four per cent of cases being treated by NSW Health are in non-acute, out-of-hospital care.
On Monday, Premier Gladys Berejiklian repeated her message to the public to stay alert.
"Just because there are zero cases, (it) doesn't mean the virus isn't working, or that it can't come back to NSW, and certainly that is the fear," she said.
"I don't want to see us lulled into a false sense of security."
