Hospitality venues and businesses across NSW have less than two weeks to install a digital system to record patrons' names and contact details or risk penalties.
Minister for Customer Service Victor Dominello says digital registration, including QR codes, is fast, accurate and mandatory from November 23.
"Any business that is serious about safety should be using digital registration, such as a QR code or other method of capturing contact details electronically. There are no excuses," Mr Dominello said in a statement on Wednesday.
"We can't respond to a pandemic with paper. We must be fast and precise and digital is the best way forward.
"We have to move away from the walk-in culture to the check-in culture. This is about building resilience as we continue to open up as safely as possible heading into summer."
He warned that any business that ignored the requirement would face serious penalties.
Businesses can download a free NSW government QR code through the Service NSW app that captures the business name, address as well as customers' contact details.
The information is securely stored for 28 days for the sole purpose of contact tracing and can be instantly accessed by NSW Health in the event of an outbreak. After this time, it will be destroyed.
Australian Associated Press