DUI and Physical Control laws are strictly enforced in Snohomish and King Counties. The current legal limit for blood alcohol content (BAC) is .08 for adults and .02 for those under 21. The legal limit for marijuana DUIs is 5 nanograms for blood THC content. However, you can still be charged with DUI even if you are below these limits- if the Prosecution can show that you were “affected” or “impaired” by any amount of alcohol, drugs, or both. You can also be convicted of “physical control of vehicle while intoxicated,” even if you aren’t actually driving the vehicle at the time of your arrest. The penalties for “physical control” are identical to those for DUI.