New York, Los Angeles, Florida, national parks, 50 states
The US requires ESTA ($21, valid 2 years) for visa-exempt visitors from VWP countries. TSA enforces strict 3-1-1 carry-on liquid rule, with limited CT scanner rollout in progress.
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⚠️The 3 things you need to know
ESTA ($21) required for visa-exempt visitors before boarding — get it 72+ hrs before travel.
TSA 3-1-1 liquid rule: 3.4oz containers, 1 quart bag, 1 bag per passenger.
Firearms: declared, unloaded, in locked hard-sided container in checked baggage only.
Customs: undeclared food triggers heavy inspection at all ports of entry.
📋Visa, passport & pets
Visa
ESTA ($21, 2-year multi-entry) required for VWP visitors. UK/EU/AU/NZ/most Western: eligible. · US ESTA ↗
Passport
Valid for duration of stay (most countries — verify with embassy).
⚠️ Country rules change. This page is a summary of common guidance based on official authorities cited above — always confirm with the destination embassy and your airline before flying, especially for controlled substances, restricted electronics, and biosecurity items.