Mask-wearing is now compulsory in Tasmanian airports whether travellers are heading inter or intrastate.
The rule covers check ins, bag drops and any retail outlets on airport premises as well as outdoor areas like pickup/dropoff zones.
Tasmania reopened to Greater Brisbane and 24 Greater Sydney local government areas on Thursday night.
10 local government areas in Sydney's west remain medium risk, and those arriving from there still have to quarantine.
"In New South Wales there has been a number of days without cases of community transmission and we are continuing to take a cautious approach in relation to the recent outbreak in western Sydney linked to the BWS outlet in Berala," said Premier Peter Gutwein.
"If you have not been in these 10 local government areas, you will not be required to quarantine on arrival."
The 10 Greater Sydney local government remaining medium risk are:
• Canada Bay
• Inner West