Washington D.C., United States

Rules to follow in Washington D.C.

4 laws, restrictions, and customs in Washington D.C. that travellers often break without knowing — and the fines or consequences that follow.

Last updated 2026-08-09

1. Tipping is not optional — it is how service workers are paid

In the US, restaurant servers, bartenders, taxi drivers, hotel bell staff, and many other service workers earn below minimum wage by law and depend on tips to make a living. A 15–20% tip at restaurants is expected; 18–22% is now standard in cities. Failure to tip is considered rude and sometimes confrontational.

Where: Legal
Tip: Budget for tipping as part of your meal and service costs. Many US restaurants now add a service charge automatically for parties of 6 or more.

2. Drinking age is 21 and strictly enforced — carry your passport

The legal drinking age in all US states is 21. Bars, restaurants, and liquor stores routinely ask for ID and are required to refuse service to anyone who appears under 35. A passport is the most reliable form of ID.

Where: Legal
Cost: Service refused; fine for the establishment
Tip: Always carry your passport when planning to drink. A driving licence from another country is generally accepted but passport is safest.

3. Cannabis laws vary by state — it is federally illegal

Cannabis is legal for recreational use in some states (California, Colorado, New York, Washington, etc.) but remains a federal crime. Possession in states where it is not legalised can result in arrest. Crossing state lines with cannabis is a federal offence.

Where: Legal
Tip: Check the law in the specific state you are in. Never cross a state border with cannabis. Do not bring cannabis to airports — airports are federal jurisdiction.

4. ESTA or visa required before travel — do not overstay

Most non-US nationals need either an ESTA (Electronic System for Travel Authorisation, valid for visa-waiver programme countries) or a visa before travelling to the US. Overstaying your authorised period is tracked and will affect future entry.

Where: Legal
Cost: Detention at port of entry; deportation; future visa denial
Tip: Apply for your ESTA at least 72 hours before departure. Check your entry stamp carefully for your authorised length of stay.

Rules to follow in Washington D.C.

1. Tipping is not optional — it is how service workers are paid

2. Drinking age is 21 and strictly enforced — carry your passport

3. Cannabis laws vary by state — it is federally illegal

4. ESTA or visa required before travel — do not overstay

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