This means the Victorian border is effectively closed to New South Wales and the ACT - except for Victorian residents returning on a red zone permit for 14 days of quarantine, and for people with exemptions, exceptions or other valid permits (such as specified workers and cross-border residents).

"If you live in the NSW cross-border area, you can enter Victoria without a permit but you must travel with proof of address," the Department of Health states.

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"Conditions apply. You cannot enter if you have been to a red zone outside of the cross-border area, or if you have COVID-19, any symptoms, or have been defined as a close contact by a state health authority.

"If you are entering Victoria as a NSW cross-border community resident, authorities ask you to stay within the Victorian cross-border area at all times.

"If you are entering New South Wales as a Victorian cross-border community resident, stay within the NSW cross-border area. If you travel beyond this area, a red zone permit will be required for re-entry into Victoria.

"At all times, we strongly advise all Victorians against travelling to red zones."

Travellers from existing orange zones in New South Wales and the ACT entering Victoria before 11:59pm 11 July can enter on an orange zone permit if they are eligible, including if they are on flights that are scheduled to depart orange zones before 11:59pm 11 July.

Orange zone permit holders are required to isolate on arrival, get tested within 72 hours, and stay isolated until they return a negative result.