Depending on the laws of the state change in this region. For example, in New York, alcoholic beverages are sold only in liquor stores - places with an appropriate license. beer for sale with no license, so in any store. Alcohol is only sold to persons under 21 years.
This decrease as a «BYOB" - says that spritnoe in this institution is not for sale, but the bottle can bring to the table a drink.
Licensed - the sign of the restaurant is the presence of a license to sell alcohol.
Drinking alcohol in public places (on the street) is forbidden, but putting a bottle of liquor in an opaque bag it becomes possible.