“Driver under 21 consuming alcohol or cannabis” under RCW 46.61.503 (often called a “Minor DUI”) is defined as a person under the age of 21 driving while having an alcohol concentration over 0.02 or any concentration of THC in their system.  This is a misdemeanor offense in Washington and carries a maximum sentence of 90 days in jail in a $1,000 fine. A “minor DUI” arrest can also carry administrative licensing consequences under RCW 46.20.308, including a minimum 90-day suspension and three years of high-risk SR-22 insurance from the DOL. Additionally, it is important to note that a driver being under the age of 21 does not automatically mean the case will be charged as a “minor DUI” under RCW 46.61.503. Many cases involving drivers under 21 who are arrested for DUI are charged as an adult DUI under RCW 46.61.502, which will carry additional penalties and consequences. Regardless of which charge is originally filed, a “Minor DUI” under RCW 46.61.503 has many similarities to an adult DUI charge and it should be taken just as seriously.