It's legal to drink and drive in Oregon.
And, there is no law against using a controlled substance and driving. There is no law that prohibits driving while feeling the effects of alcohol or a controlled substance.
However, there is a law against driving while a person is “under the influence” of alcohol, an inhalant or a controlled substance.
The "typical" DUI case is no longer limited to "drunk driving." The police are arresting more drivers for operating a vehicle while allegedly "under the influence" of any number of prescription medications. (A person is presumed to be “under the influence of intoxicating liquor” if a chemical test shows a blood alcohol concentration (BAC) of .08 percent or higher.)
However, police often arrest drivers who have a BAC that is lower – sometimes much lower – than that. The police and the prosecutor may try to convict a driver with less than .08 BAC by alleging that the person was “impaired,” or otherwise was “adversely affected to a noticeable or perceptible degree” by “intoxicating liquor,” an inhalant, a controlled substance, or any combination of these substances.
Cannabis and Cars
Cannabis and DUI
Dismissals, Pleas and Jury Trials
DUI Cases Not Limited to 'Drunk Driving'
Additional Charges Follow When a DUI Results in Death
Cannabis Levels and Driving
Suspension May Follow DUI
One DUI Arrest Changes Everything
You May Save Your License
Police Seek to Prove Impairment from Cannabis
Fines and Fees Follow Convictions
A Breath Test Is Not the Last Word
Marijuana and DUI
What If You Didn't Do Anything Wrong?
DUI Can Affect Jobs and Careers
DUI Attorneys Review Professional Licensing Rules
Felonies and Misdemeanors Carry Jail Terms
Do Not Enter a Guilty Plea at Your First Court Appearance
Mugshot Website Operators Busted
It's a Mistake to Plead Guilty at Your First Court Apearance
Home Detention Updated
It's Normal to Not Know What to Do
DUI Can Lead to Loss of License
DMV Implied Consent Suspension
DUI Conviction May Mean Jail
Drinking Boaters Drowning in a Deluge of Laws
More about Diversion
The Court Will Tell You to Take Yourself to Jail
Diversion Is Not Always the Best Choice
What to Do After a DUI Arrest