Learn local traffic rules and driving conditions before you drive. Some states may let you drive using your Australian driver's licence. You need an International Driving Permit (IDP) to drive in the US.Information and advice is available from the Centers for Disease Control and Prevention (CDC) and the Transportation Security Administration (TSA). Expect enhanced screening procedures, including for domestic flights within the US. US authorities may deny the boarding of any US-bound traveller showing signs of illness.If you're visiting for less than 90 days, you may be eligible to apply for an Electronic System for Travel Authorization (ESTA) and enter the US under the Visa Waiver Program (VWP). Check US entry, transit and exit requirements. US Customs and Border Protection (CBP) officials have broad powers to decide if you're eligible to enter and may determine that you are inadmissible for any reason under US law. Information, alerts and updates relating to natural disasters and significant severe weather events impacting the US will be provided via the Embassy and Smartraveller social media channels.Monitor weather conditions and follow the advice and instructions of local authorities. Extreme weather and natural hazards include earthquakes, volcanic eruptions, tsunamis, landslides, avalanches, hurricanes, tornadoes, blizzards, wildfires, and floods.Be alert, particularly in public places and at events. There's a persistent and heightened threat of terrorist attacks and mass casualty violence in the US.Conceal your valuables, and don't leave items unattended in your car.

Take care in crowded areas and on public transport. If you live in the US, learn and practice active shooter drills. Violent crime is more common than in Australia.Follow the instructions of local authorities and abide by any curfews in place. Monitor the media for information and updates. Avoid areas where demonstrations and protests are occurring due to the potential for unrest and violence.

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