ACT Chief Minister Andrew Barr is set to reveal Canberra's path out of lockdown after warning the easing of restrictions will be slow and steady.

The number of people in the community while infectious remains a concern, with 10 of Monday's 13 new cases not in quarantine the whole time.

"If we've got too many people even unknowingly infectious in the community and too much activity, then you're on a pathway to where Sydney finds itself now," he told reporters.

The next steps to ease restrictions will be unveiled during Mr Barr's daily coronavirus update on Tuesday.

Canberra's lockdown, already extended twice, is currently scheduled to run until midnight on Friday.

Mr Barr has repeatedly warned people to expect a difficult spring and not to expect drastic changes when lockdown does end.

He has also put businesses on notice, saying those found to repeatedly flout public health orders could be shut down.

The problem mostly centred around mask wearing in hospitality venues.

Meanwhile, the ACT is due to achieve a 50 per cent vaccination rate for over-12s this week.

It comes as children aged between 12 and 15 can be booked in for a Pfizer jab at government clinics from next Monday.