Gatherings are restricted to two people, with residents only allowed out of their homes for a few essential reasons.
This includes buying food or essential goods, getting a medical treatment or engaging in physical exercise.
You can also visit a terminally ill relative or attend a funeral.
Students are also allowed to attend childcare, school, college or university.
From April 3, the state’s borders will be closed to everyone except residents and essential workers.
New South Wales
NSW officials are also enforcing the two-person limit, with residents legally obliged to stay at home unless they have a ‘reasonable excuse’.
This includes travelling to work or school, buying food or other essentials, exercise and medical reasons.
It is left up to police officers to decide who will get the fines, with the maximum being an $11,000 fine or six months in prison.
The state has also brought in the two-person limit inside and outside the home – not counting people you already live with.
Its chief medical officer Dr Brett Sutton confirmed an exception would made for people visiting their boyfriend or girlfriend if they lived separately.
Otherwise, people are allowed to leave the house for one of five reasons – shopping for food, work and education, care reasons, exercise or other extenuating circumstances.
Australian Capital Territory
The ACT is also enforcing the two-person limit, but people are allowed up to two guests inside their homes – only if there is at least four square metres per person.
It also only allows people to leave home for essential reasons, including shopping for essentials, medical reasons, exercise, work or study.
Offenders are being issue with warnings, but may get a fine if they are found to be breaking the rules again.
As well as closing its borders to non-residents, WA has also introduced fines for people who cross out of their region.
Nine regions have been carved up, and people cannot move between them for anything but an essential reason.
This includes going to work, medical appointments, school or other types of education.
Drivers are also allowed to transport freight, and people can go to a shop outside of their area if the essentials are not available closer to home.
In NT, police are still enforcing a 10-person limit rather than just two people.
But chief minister Michael Gunner warned it may take further action if people don’t stick to the rules.
All non-essential arrivals in the state must self-quarantine for 14 days, and people are not allowed to visit remote communities.
Tasmania also has brought into law the two-person limit, with residents only allowed to leave home for essential reasons.
This includes shopping, exercising, and going to healthcare apppointments.
Going to a vet is also allowed, as is going to school or caring for another person.
Arrivals must self-isolate for 14 days.
SA has also stuck to the 10-person limit, with $1,000 on-the-spot fines for people who have a larger group.
Again, all arrivals into the state must self-isolate for 14 days.