You will need a valid visa or ESTA to enter the United States and must be in possession of one at least 72 hours before departure.
The Visa Waiver Programme (VWP) permits Australian and New Zealand citizens to enter the USA for tourism purposes for up to 90 days without a visa.
All travellers entering the USA under the Visa waiver programme must have a machine-readable passport.
If you're travelling to, or through, the USA and do not hold a machine-readable passport, you must either:
- Obtain a machine-readable passport or,
- Obtain a US entry visa. In this situation, keep your current non machine-readable passport and apply for a US entry visa, this may require that you attend an interview at the US Consulate General in Melbourne or Auckland.