Laws vary from state to state. When you are physically present in a state, even temporarily, you are subject to that state’s laws. You must carry a passport showing that you have leave to enter or remain with you at all times.
Possession or trafficking of a controlled substance in the United States can carry a severe prison sentence and/or fine. Check with each state you are intending to visit to make sure you comply with the personal possession and consumption laws of controlled substances within those states. A list of all types of controlled substances, as listed under the Controlled Substances Act, can be found on the US Department of Justice website.
Details of the assistance offered by the British Embassy and Consulates to British nationals if arrested or detained in the USA is available on GOV.UK.
About The Port
Multipurpose port handling most types of cargo including dry and liquid bulk, containers, vehicles, general and passengers.
At the mouth of the Patapsco River, Chesapeake Bay, in Maryland, NE USA.