* Restrictions apply for Greater Sydney, the Central Coast, Blue Mountains, Wollongong and Shellharbour.

* Anyone who lives or works in seven local government areas** cannot travel outside metropolitan Sydney, unless essential.

* One person per four square metre rule applies indoors and outdoors, including weddings and funerals.

* Masks compulsory in all indoor non-residential settings, including workplaces, and at organised outdoor events.

* Visitors to households limited to five, including children.

* Dancing banned at indoor hospitality venues or nightclubs.

* Dancing allowed at weddings for the bridal party, which must be no more than 20 people.

* Singing by audiences at indoor shows or by congregants at indoor places of worship banned.

* Dance and gym classes limited to 20, masks required.

* Outdoor seated events limited to 50 per cent seated capacity.

* Public transport capacity limits, and green dots on seats, are back.

* Drinking while standing at indoor venues banned.

** Affected local government areas: City of Sydney, Waverley, Randwick, Canada Bay, Inner West, Bayside, and Woollahra.

Australian Associated Press