If you are a passenger arriving on board a ship or aircraft you do not need a permit if:
the drug is required for your own medical treatment or the treatment of another passenger or animal under your care
the drugs has been prescribed by a medical practitioner or veterinarian and the original prescription is presented upon arrival, and
the amount of drug/s does not exceed three (3) months supply at the maximum prescribed dosage.
If the prescription is not in English, then a version translated into English must also be presented. The exemption only applies to drugs carried in your accompanied baggage.
If you are a passenger aged 18 years or over you do not need a permit to import kava if:
the kava is in either root or dried form
the amount of kava does not exceed 2 kilograms, and
the kava is carried in your accompanied baggage.
These exemptions apply only to passengers. Any amount of controlled drugs imported by other means, such as post or air cargo, requires a permit.