This Oregon driving law guide provides plain-English explanations of frequently tested traffic rules, unique Oregon regulations, and direct citations to Oregon Revised Statutes (ORS) and ODOT guidance. Written for quick decision-making on the road—what you must do, must never do, and how Oregon's distinctive laws affect your daily driving. This is not legal advice; always follow posted signs and official directions from officers or flaggers.
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Oregon's mountain passes require chain preparation and adherence to weather-specific driving rules.
In Oregon, double solid yellow centerlines separate opposite directions of traffic and establish no-passing zones. Crossing double yellow lines to pass another vehicle is prohibited under ORS 811.295. You must stay to the right of these lines except when making a lawful left turn at an intersection, driveway, or alley, or when avoiding an obstruction that requires traveling to the left of the centerline.
When You May Cross Double Yellow Lines in Oregon
Oregon law permits crossing double yellow lines in these specific circumstances:
Left turns: Turning left into or from a driveway, alley, private road, or at an intersection
Obstruction avoidance: When a hazard or obstruction makes it necessary to drive left of center, provided the left side is clearly visible and free of oncoming traffic
Official direction: When directed by a police officer, flagger, or traffic control device
Road work zones: When signs or cones direct you to travel left of the normal centerline
Penalties for Illegal Passing in No-Passing Zones
Violating Oregon's double yellow line law can result in:
Fine: $265 to $440 (varies by jurisdiction)
Points: Up to 3 points on your driving record
Insurance rate increases
Possible reckless driving charges if the violation endangers others
Related Oregon Passing Laws: ORS 811.410 & ORS 811.415
ORS 811.410 governs unsafe passing on the left, requiring drivers to ensure the left lane is clearly visible and free of oncoming traffic before passing. ORS 811.415 addresses passing on the right, which is generally prohibited except when the overtaken vehicle is making a left turn, or on one-way streets and highways with multiple marked lanes.
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Oregon's No Self-Service Gas Law: ORS 480.330
Why Can't You Pump Your Own Gas in Oregon?
Oregon is one of only two states (along with New Jersey) that prohibits self-service gasoline pumping at most stations. Under ORS 480.330 to 480.385, licensed attendants must dispense fuel at retail gasoline stations. This law dates back to 1951 and was enacted for safety, fire prevention, and job creation reasons.
Exceptions to Oregon's Gas Pumping Law
Limited self-service is allowed in:
Rural counties: In counties with populations under 40,000, self-service is permitted from 6 PM to 6 AM
Diesel and motorcycles: Self-service diesel fuel and motorcycle fueling are allowed at designated pumps
Aviation fuel: Self-service is permitted at airports
Marine fuel: Boat owners may pump their own marine fuel
What Happens If You Pump Your Own Gas in Oregon?
Violating the attendant requirement can result in fines for both the customer and the gas station. Stations face potential penalties of $500 per violation. Customers may receive warnings or citations. Most Oregonians respect the law, and attendants are readily available to assist.
Oregon Bicycle Laws: Sharing the Road Safely
ORS 811.065: Minimum 3-Foot Passing Distance for Bicycles
Oregon law requires drivers to maintain at least 3 feet of clearance when passing a person operating a bicycle. This applies regardless of whether the cyclist is in a designated bike lane or sharing the travel lane. When 3 feet of clearance isn't possible due to road width or traffic conditions, drivers must slow to a safe speed and pass only when it won't endanger the cyclist.
Bicycle Rights and Responsibilities on Oregon Roads
Oregon grants cyclists full rights to use public roadways, with some exceptions on limited-access highways. Key bicycle regulations include:
Lane positioning: Cyclists may take the full lane when necessary for safety, such as avoiding hazards or preparing for turns (ORS 814.430)
Lighting requirements: Bicycles must have a white front light and red rear reflector or light when riding between sunset and sunrise (ORS 815.280)
Helmet law: While Oregon has no statewide adult helmet law, riders under 16 must wear helmets (ORS 814.485)
Traffic signals: Cyclists must obey all traffic control devices and signals like motor vehicles
Portland's Bicycle Infrastructure and Safety
Portland is nationally recognized for bicycle infrastructure, with over 350 miles of bikeways including protected bike lanes, neighborhood greenways, and multi-use paths. Drivers should remain vigilant for cyclists, especially in urban areas. Watch for bike boxes at intersections, which allow cyclists to position themselves ahead of traffic at red lights.
Penalties for Violating Bicycle Safety Laws
Failing to provide adequate passing distance or endangering a cyclist can result in fines of $260 to $435. If a collision occurs, drivers may face additional penalties including reckless driving charges, civil liability, and license suspension.
From November 1 through March 31, Oregon requires vehicles traveling through designated mountain pass areas to carry chains, even if roads appear clear. When conditions deteriorate, ODOT posts "Chains Required" or "Traction Tires Required" signs. Ignoring these signs can result in fines and being turned back at checkpoints.
Traction Tires vs. Chains: What's the Difference?
Oregon distinguishes between two winter requirements:
Traction tires: Mud and snow tires with mountain snowflake symbol or M+S rating with at least 1/4" tread
Chains required: Actual tire chains or approved cable chains must be installed on drive wheels
Four-wheel and all-wheel drive vehicles may be exempt from chain requirements if equipped with adequate traction tires, but must still carry chains during Level 3 restrictions.
Major Oregon Mountain Passes Requiring Chains
Key mountain pass corridors where chain laws apply:
I-84: Emigrant Hill, Deadman Pass, Cabbage Hill (Blue Mountains)
US-20: Santiam Pass
US-26: Mount Hood (Government Camp area)
OR-58: Willamette Pass
OR-138: Diamond Lake area
I-5: Siskiyou Summit (near California border)
Studded Tire Regulations: ORS 815.210
Studded tires are permitted in Oregon from November 1 through March 31. Using studded tires outside this period results in fines unless extended by ODOT due to unusual weather conditions. Studded tires cause pavement damage, which is why their use is restricted to winter months.
Oregon's basic speed rule (ORS 811.100) requires drivers to travel at speeds reasonable and prudent for existing conditions. Even if you're driving at or below the posted speed limit, you can be cited if your speed is unsafe for weather, traffic, visibility, or road conditions.
Default Speed Limits Throughout Oregon
Area Type
Default Speed Limit
Interstate highways (rural)
65-70 mph
Interstate highways (urban areas)
55-65 mph
US/State highways
55 mph
City streets (unless posted)
25-30 mph
School zones (when children present)
20 mph
Photo Radar & Speed Enforcement in Oregon
Oregon uses photo radar and red light cameras in certain jurisdictions, particularly in Portland and surrounding areas. Citations issued via camera include a photograph of your vehicle and license plate. You have the right to challenge these citations in court, but ignoring them results in additional penalties and potential license suspension.
You are not required to stop for a school bus when:
Traveling in the opposite direction on a roadway separated by a physical barrier or unpaved median
The bus is in a designated loading area completely off the roadway
Penalties for Passing a Stopped School Bus
Illegally passing a stopped school bus in Oregon is a serious offense:
First offense: Fine up to $2,500 and potential 30-day license suspension
If a child is injured: Class A misdemeanor with possible jail time
Civil penalties: Up to $1,000 for first violation, $2,000 for subsequent violations
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Oregon Right on Red & U-Turn Laws
Right Turn on Red Light Rules: ORS 811.360
Oregon allows right turns on red after coming to a complete stop, yielding to pedestrians, and ensuring the turn can be made safely—unless a sign prohibits it. You must stop behind the stop line or crosswalk before proceeding.
Left Turn on Red in Oregon: ORS 811.360
Oregon permits left turns on red from a one-way street onto another one-way street after a complete stop, unless prohibited by signs. This is less common than right on red but is legal statewide.
Oregon U-Turn Laws: Where They're Legal
U-turns are legal in Oregon unless:
Signs specifically prohibit them
You're on a curve or hill where visibility is limited
Other vehicles may be endangered
You're in a business district between intersections
At intersections with traffic lights, U-turns are generally permitted from the left lane unless signs prohibit them. Always yield to all pedestrians and cross-traffic.
Oregon Rain & Fog Driving Safety Requirements
Headlight Requirements in Oregon: ORS 811.515
Oregon law requires headlights to be turned on:
Between sunset and sunrise
When visibility is limited to 1,000 feet or less
When using windshield wipers (due to rain, snow, or sleet)
The "wipers on, lights on" rule is strictly enforced. Driving with wipers on but no headlights results in citations of approximately $265.
Increase following distance: Double your normal following distance (4-5 seconds)
Avoid cruise control: Maintain manual speed control for better reaction time
Fog Safety on Oregon Coast & Valleys
Dense fog is common along the Oregon Coast and in the Willamette Valley. When visibility drops below 500 feet:
Use low-beam headlights (high beams reflect off fog and reduce visibility)
Reduce speed significantly below posted limits
Use fog line (right edge line) as a guide
Consider delaying travel if visibility is severely limited
Oregon DUII Laws & Penalties: ORS 813.010
Oregon DUII Blood Alcohol Content (BAC) Limits
Oregon prohibits driving under the influence of intoxicants (DUII) with the following BAC limits:
Adult drivers (21+): 0.08% BAC or higher
Commercial drivers: 0.04% BAC or higher
Drivers under 21: 0.00% BAC (zero tolerance)
Oregon DUII law also covers impairment from marijuana, prescription drugs, and other controlled substances—not just alcohol.
Oregon DUII Penalties & Mandatory Minimums
First-time DUII conviction penalties in Oregon include:
Jail time: Minimum 48 hours (or 80 hours community service)
Fines: $1,000 to $6,250
License suspension: 90 days to 1 year
Ignition Interlock Device (IID): Required for 1 year
DUII Diversion: Available for first-time offenders (requires guilty plea, 1-year program, fees)
Oregon Implied Consent Law: ORS 813.100
By operating a vehicle in Oregon, you consent to BAC testing if lawfully arrested for DUII. Refusing a breath, blood, or urine test results in automatic license suspension:
First refusal: 1-year suspension
Second refusal (within 5 years): 2-year suspension
Third refusal (within 5 years): 3-year suspension
Oregon Cell Phone & Distracted Driving Laws
Oregon Hands-Free Law: ORS 811.507
Oregon's hands-free law prohibits holding or manually operating mobile devices while driving. This includes:
Texting or reading messages
Making calls without hands-free equipment
Watching videos or taking photos
Scrolling social media or apps
Allowed Mobile Device Use While Driving
Oregon permits:
Hands-free calls: Using Bluetooth, speakerphone, or earpiece (one ear only)
GPS navigation: If mounted and voice-activated
Emergency calls: Calling 911 or emergency services
Penalties for Cell Phone Violations in Oregon
First offense: Class B traffic violation, fine up to $1,000
Second offense (within 10 years): Class A traffic violation, fine up to $2,500
If violation causes crash: Enhanced penalties and possible criminal charges
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Legal Disclaimer: This guide provides general information about Oregon traffic laws and is not legal advice. Traffic laws change frequently and vary by jurisdiction. Always consult the most current Oregon Revised Statutes, local ordinances, and legal professionals for specific situations. When in doubt, follow posted signs and directions from law enforcement.