United States travel essentials: advice, plugs, emergency numbers
Before you visit United States: travel advice level, plug type A/B, 120V, emergency 911, currency USD.
Travel advice (UK FCDO)
No advice against travel Updated 2026-10-30
Latest change (original, English)
Updated information about Ebola (‘Entry requirements’ page).
Updated information about Ebola (‘Entry requirements’ page).
↗ Read the full official advice
⚠️ This is the UK government’s assessment. Rules for your passport (visa, entry) can be different — check your own government’s official travel advice too.
CapitalWashington, D.C.
CurrencyUSD
LanguagesSpanish, Carolinian, Chamorro, Hawaiian
Calling code+1
Emergency numbers911
Plug typesType A, Type B
Voltage120 V
Driving sideRight
Population340M