Australia reopened its borders for travel purposes from 21st February 2022. The borders are now open for appropriately vaccinated visa holders. But there are a few requirements upon arrival in Australia. 

Proof of Vaccination: 

Upon arrival, the proof of vaccination must be provided. The proof should the the following credentials:

• Issued by a national or state/provincial-level authority or an accredited vaccination provider
• Written in English or accompanied by a certified translation
• Containing at a minimum:
  • name as it appears in the traveller's passport
  • either date of birth or passport number, or national identity number 
  • the vaccine brand name, and
  • the date of each dose or the date on which a full course of immunisation was completed.

Complete the Digital Passenger Declaration

All passengers arriving by air into Australia should complete the Digital Passenger Declaration (DPD), unless they are flight crew. 

You can start your DPD seven days before your flight and submit it within 72 hours prior to your departure for Australia. This is because you must provide your health information and declaration (vaccination status and COVID-19 test result) within 72 hours before your flight. The DPD requests details that are considered critical health information.

Pre-departure COVID-19 test

A negative COVID-19 test result is required for travelling to or transiting through Australia. Evidence of a negative COVID-19 PCR or other Nucleic Acid Amplification Test (NAAT) test taken within 3 days before your flight’s scheduled departure, or a medical certificate as proof of a negative Rapid Antigen Test taken under medical supervision within 24 hours before your flight’s scheduled departure, must be provided to your airline when you check in.

If your flight is delayed, you will still be considered to have met the pre-departure testing requirements. You will not need a new test.

However, if your flight is re-scheduled or cancelled, you will need to provide evidence of a negative COVID-19 PCR test or other NAAT test taken no more than 3 days before the re-scheduled flight or a Rapid Antigen Test taken within 24 hours before the rescheduled flight.

Quarantine and local requirements

Travellers to Australia need to comply with requirements in the state or territory of their arrival, and any other state or territories that you plan to travel to. This includes quarantine and post-arrival testing requirements. Restrictions may change at short notice.

Quarantine requirements in Australia are determined by State and Territory governments.

If you wish to travel on to another state or territory you may not be allowed to enter, or may be subject to a quarantine period.

Source:- https://covid19.homeaffairs.gov.au/before-i-travel