The risk of a fatal crash for drivers under 21 is greater at low alcohol levels than it is for older drivers. It is illegal in every state for persons under the age of 21 to purchase and possess alcoholic beverages. It is illegal for persons under 21 who have been drinking to drive.
Several studies show conclusively that zero tolerance laws save lives.
For example, Maryland's zero tolerance law produced a 13 percent decrease in drinking drivers under age 21 involved in crases. The use-lose statutes make it illegal for anyone under the age of 21 to purchase, possess, transport or consume alcohol. Being arrested for drunk driving is very expensive.