Light rail and bus routes have been added to the list of COVID-19 exposure sites.
Deputy Chief Health Officer Dr Vanessa Johnston said ACT Health is working closely with Transport Canberra to access MyWay card data and Check in Canberra data in order to contact people.
She urged people, especially anyone using public transport regularly, to check the exposure sites and to fill out a declaration form if they are a close contact.
The ACT has reported 16 new cases in the last 24 hours, bringing total active cases to 83.

The light rail between Gungahlin and the Dickson interchange has been identified as a risk at specific times from August 10 to August 12.
The route 9 bus between Watson and the Dickson interchange on August 11 has also been identified at specific times in the morning and afternoon.
The route 25 bus between Gungahlin and Moncreiff is listed from August 10 to 12 at specific times.
The list of exposure sites is available here.