Different states use various letter designations for the spectrum of alcohol and substance related driving offenses committed within their borders. New York recognizes DWI (Driving While Intoxicated), DUI (Driving Under the Influence), DWAI (Driving While Ability Impaired (by alcohol)), and DWAI /drugs (Driving While Ability Impaired (by a substance other than alcohol)). New York also prosecutes for Chemical Test Refusal and underage drinkers with a BAC of 0.02% or more, based on the Zero Tolerance law.
One question that often comes up is the difference between DUI and DWI. After all, both charges involve operating a vehicle while under the influence of drugs, alcohol, or any other mind-altering substance. Yet, there are some differences in the two charges.