what is bal
Both BAL and BAC mean the same thing. BAL is the ratio of the alcohol to blood in the body, and is usually calculated as a percentage. The legal limit for driving while intoxicated in most states is 0.08% (0.10% in some states, and 0.02% for minors). BAL/BAC is not the number of drinks a person consumes. QUANTITY: The more alcohol you drink, the higher your blood alcohol level will be. 2  RATE: The faster you consume alcohol, the higher your blood alcohol level will be. 3  WEIGHT: The less you weigh, the higher your blood alcohol level will be. 4  Your weight reflects the volume of fluid in your body.