Which states ban trucks from the left lane?

Among the states we have read: Colorado on six stretches of I-70, Connecticut, Kentucky, Missouri, New Jersey, North Carolina, Pennsylvania, Utah and Virginia. Each one covers different trucks and roads. For example, Kentucky, New Jersey and Pennsylvania cover roads with 3 or more lanes each way. Connecticut covers roads with more than 2 lanes each way where the state has designated the lane. North Carolina covers highways with 6 or more lanes. Virginia covers interstates with more than 2 lanes each way.

Does the rule depend on how much my truck weighs?

In many states, yes. Michigan, New Jersey, Oregon, Pennsylvania and Washington start at 10,000 pounds. Utah starts at 18,001 pounds of GVWR. North Carolina starts at 26,001 pounds of GVWR. Missouri covers trucks registered for more than 48,000 pounds. Kentucky, Indiana, Georgia, Connecticut and Virginia go by the kind of vehicle, not a weight we found in the law.

When can a truck use the left lane?

Most rules have exceptions. The common ones are preparing for a left turn, leaving or entering from the left, and an emergency or hazard. Some states also allow passing. New Jersey lets you stay in the left lane for up to one mile to turn or to enter or exit. Read the exceptions on the card for your state.

What is the penalty for using the wrong lane?

We give a penalty only where we read it. Colorado calls it a class A traffic infraction. Connecticut calls it an infraction with a fine of $88. Utah calls it an infraction. Michigan calls it a civil infraction. Oregon calls it a class B traffic violation. In Missouri it is a class C misdemeanor, and a higher class if it causes a threat of an accident or a crash. We did not read the penalty sections for the other states.

What if my state is not on this page?

We have read 14 states so far and add more in batches. A state that is missing has not been checked yet. It does not mean there is no truck lane rule. Reports say California, Massachusetts and Tennessee have one, but we have not read those laws yet. Follow the posted signs, and check the state's law before you rely on this page.

Do posted truck lane signs change the rule?

Yes. Some states let the highway department mark lanes for trucks, and the sign sets the rule on that road. Georgia's law does this on interstates with 4 or more lanes. When a sign and this page differ, follow the sign.

Truck Lane Laws by State

Which states bar trucks from the left lane or keep them in the right lanes, which trucks each rule covers, and where to read the law.

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QUICK ANSWER

Can trucks use the left lane?

In some states, yes. Many states keep heavy trucks out of the left lane on multilane roads. We have read the law in 14 states so far. 9 of them bar trucks from the left lane (Colorado, Connecticut, Kentucky, Missouri, New Jersey, North Carolina, Pennsylvania, Utah and Virginia). 5 keep trucks in the right lane or lanes (Georgia, Indiana, Michigan, Oregon and Washington). Which trucks count depends on weight, and each rule covers only some roads. We read each law on October 16 and 21, 2026.

States read so far: 14
No left lane: 9
Keep right: 5
Not checked yet: 36

Checked against each law on October 16 and 21, 2026. This is a guide, not legal advice. A posted sign is what you must follow. Laws change, so read the law linked in each card before you rely on it.

Truck lane rules side by side

This table lists the 14 states we have read so far. Pick a state to jump to the details below. 36 more states are not checked yet and are listed further down.

Truck lane rules by state, checked October 16 and 21, 2026
State	Trucks covered	Roads	Rule
Colorado	A commercial vehicle. The section we read gives no weight.	Six mountain stretches of I-70, by milepost: 115.5 to 131.0 (Glenwood Canyon), 169.5 to 173.0 (Dowd Junction), 180.0 to 190.5 (Vail Pass), 205.5 to 221.0 (Eisenhower-Johnson Tunnel), 224.0 to 228.5 (Georgetown Hill) and 243.0 to 247.0 (Floyd Hill).	No left lane
Connecticut	A motor vehicle with a commercial registration, a motor bus, a vehicle with a trailer, or a school bus.	Divided limited access highways with more than 2 lanes the same way. The ban is for the extreme left lane, where the Office of the State Traffic Administration designates it.	No left lane
Georgia	A truck, which the law defines as any vehicle with more than six wheels, except buses and motorcoaches.	Roads with 3 or more lanes the same way: use only the two right-hand lanes. Roads with 2 lanes the same way: stay out of the left lane.	Keep right
Indiana	A truck, truck tractor, road tractor, trailer, semitrailer or pole trailer. The sections we read give no weight.	Interstate highways. With 3 or more lanes the same way, use the two far right lanes. Otherwise, use the far right lane.	Keep right
Kentucky	A truck tractor, trailer or semitrailer.	A roadway divided into 3 or more marked lanes for travel in one direction.	No left lane
Michigan	A truck with a gross weight of more than 10,000 pounds, a truck tractor, or a vehicle with a trailer or semitrailer.	Roads with 3 or more lanes the same way, including freeways.	Keep right
Missouri	Trucks registered for a gross weight of more than 48,000 pounds. The law counts any tractor, trailer, semitrailer or combination used to carry property, and any commercial motor vehicle.	Interstates, freeways and expressways in urbanized areas with 3 or more lanes the same way.	No left lane
New Jersey	A truck of 10,000 pounds registered gross weight or over.	Roadways with 3 or more lanes the same way.	No left lane
North Carolina	A motor vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.	Controlled-access highways with 6 or more lanes.	No left lane
Oregon	A camper, any vehicle with a trailer, and any vehicle with a registration weight of 10,000 pounds or more.	All roadways with 2 or more lanes for traffic going the same way.	Keep right
Pennsylvania	A vehicle or combination over 10,000 pounds.	Limited access highways with 3 or more lanes the same way, unless posted otherwise.	No left lane
Utah	A vehicle or combination with a gross vehicle weight rating of 18,001 pounds or more.	A freeway, or a part of one, with 3 or more general purpose lanes the same way. An HOV lane, or a lane that runs from an on-ramp to the next off-ramp, does not count.	No left lane
Virginia	A commercial motor vehicle. Buses and school buses are not covered.	Interstates with more than 2 lanes each way, where the posted limit is 65 mph or higher. On I-81 and in the Eighth Planning District the ban applies whatever the posted limit is.	No left lane
Washington	A vehicle or combination over 10,000 pounds. For the left lane ban on limited access roads, any vehicle towing a trailer is covered too.	Any roadway with 2 or more lanes the same way: use the right-hand lane. On a limited access roadway with 3 or more lanes the same way: stay out of the left-hand lane.	Keep right

States that bar trucks from the left lane

In these states the law bars some trucks from the left lane on certain roads. Most of the rules cover only roads with 3 or more lanes the same way.

Colorado

No left lane

Which trucks: A commercial vehicle. The section we read gives no weight.
Which roads: Six mountain stretches of I-70, by milepost: 115.5 to 131.0 (Glenwood Canyon), 169.5 to 173.0 (Dowd Junction), 180.0 to 190.5 (Vail Pass), 205.5 to 221.0 (Eisenhower-Johnson Tunnel), 224.0 to 228.5 (Georgetown Hill) and 243.0 to 247.0 (Floyd Hill).
The rule: Do not enter the furthest left lane.
Exceptions: When the law specifically requires or allows you to pass.
Penalty: A class A traffic infraction.
Good to know: Senate Bill 24-100 added this rule.

C.R.S. 42-4-1014 (Senate Bill 24-100)

Connecticut

No left lane

Which trucks: A motor vehicle with a commercial registration, a motor bus, a vehicle with a trailer, or a school bus.
Which roads: Divided limited access highways with more than 2 lanes the same way. The ban is for the extreme left lane, where the Office of the State Traffic Administration designates it.
The rule: Do not drive in the extreme left lane where it is designated.
Exceptions: When a police officer directs you to. Or when the way on or off the highway is on the left. Then you may use the left lane only as long as it takes to enter or leave safely.
Penalty: An infraction, with a fine of $88.
Good to know: The ban applies only where the State Traffic Administration designates the lane. We did not look up which stretches it has designated.

Conn. Gen. Stat. § 14-230a

Kentucky

No left lane

Which trucks: A truck tractor, trailer or semitrailer.
Which roads: A roadway divided into 3 or more marked lanes for travel in one direction.
The rule: Do not drive in the leftmost lane.
Exceptions: Entering or leaving a highway, yielding to traffic coming onto the highway, or when traffic conditions would keep you from using the right or center lanes safely.
Good to know: A separate rule bars all motor vehicles from the leftmost lane of a limited access highway with 4 or more lanes and a posted limit of at least 65 mph, except to pass, to yield to merging traffic, or because of traffic or road conditions.

KRS 189.340(7)(c), added by 2024 Ky. Acts ch. 198

Missouri

No left lane

Which trucks: Trucks registered for a gross weight of more than 48,000 pounds. The law counts any tractor, trailer, semitrailer or combination used to carry property, and any commercial motor vehicle.
Which roads: Interstates, freeways and expressways in urbanized areas with 3 or more lanes the same way.
The rule: Do not drive in the far left lane.
Exceptions: When you must follow traffic control devices that direct you to another lane, or when the right half of the roadway is closed for construction or repair.
Penalty: A class C misdemeanor. It is class B if the violation causes an immediate threat of an accident, and class A if an accident results.

RSMo 304.015(7)

New Jersey

No left lane

Which trucks: A truck of 10,000 pounds registered gross weight or over.
Which roads: Roadways with 3 or more lanes the same way.
The rule: Do not drive in the farthest left lane.
Exceptions: Preparing for a left turn, and entering or leaving the roadway from the left lane. You may stay in the left lane for up to one mile for either. Also when reasonably needed in an emergency, such as poor visibility, snow, an accident or emergency vehicles.
Good to know: A 2022 bill would have extended the rule to roads with 2 lanes the same way. We found no sign that it became law.

R.S. 39:4-88(e)

We read this on Onecle's copy of the statute, which shows changes through 2013, and press reports that the three-lane rule is still current. Check the state law for the latest text.

North Carolina

No left lane

Which trucks: A motor vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
Which roads: Controlled-access highways with 6 or more lanes.
The rule: Do not use the left-most lane.
Exceptions: Entering or exiting the highway, avoiding a hazard, or passing.

G.S. 20-146(f)

Pennsylvania

No left lane

Which trucks: A vehicle or combination over 10,000 pounds.
Which roads: Limited access highways with 3 or more lanes the same way, unless posted otherwise.
The rule: Do not drive in the left-hand lane.
Exceptions: Preparing for a left turn at an intersection, an exit, or a private road or driveway, where the turn is legal.
Good to know: Pennsylvania also tells all vehicles to drive in the right-hand lanes on limited access highways with 2 or more lanes the same way. That rule has exceptions for passing, going faster than the traffic flow, letting traffic merge, and left turns. The department can post other rules.

75 Pa.C.S. § 3313(d)

Utah

No left lane

Which trucks: A vehicle or combination with a gross vehicle weight rating of 18,001 pounds or more.
Which roads: A freeway, or a part of one, with 3 or more general purpose lanes the same way. An HOV lane, or a lane that runs from an on-ramp to the next off-ramp, does not count.
The rule: Do not use the left-most general purpose lane.
Exceptions: Preparing to turn left, or taking a highway split or an exit on the left. Responding to emergency conditions. Avoiding traffic moving onto the highway from an acceleration or merging lane. Following direction signs that direct use of a designated lane.
Penalty: An infraction.
Good to know: UDOT's highway restrictions page also says permitted non-divisible loads must use the right-most lane, except where that lane must exit. They may move left to pass and must return to the right as soon as feasible. We did not find that in the code section.

Utah Code 41-6a-702 (effective May 6, 2026) UDOT: Highway restrictions

Virginia

No left lane

Which trucks: A commercial motor vehicle. Buses and school buses are not covered.
Which roads: Interstates with more than 2 lanes each way, where the posted limit is 65 mph or higher. On I-81 and in the Eighth Planning District the ban applies whatever the posted limit is.
The rule: Do not drive in the left-most lane.
Exceptions: Preparing to exit by a left exit, and work on maintenance or construction on an interstate.
Good to know: On an interstate with 2 lanes or fewer each way, a commercial motor vehicle must keep to the right-most lane when it goes 15 mph or more below the posted limit.

Va. Code § 46.2-803.1

States that keep trucks in the right lane or lanes

In these states the law tells trucks which lanes to use. Check which trucks it covers, because many of these rules start at a set weight.

Georgia

Keep right

Which trucks: A truck, which the law defines as any vehicle with more than six wheels, except buses and motorcoaches.
Which roads: Roads with 3 or more lanes the same way: use only the two right-hand lanes. Roads with 2 lanes the same way: stay out of the left lane.
The rule: Stay in the right lanes. Do not use the left lane on a two-lane road.
Exceptions: Preparing for a left turn. On a two-lane road, you may also use the left lane when you are actually passing another vehicle.
Good to know: The state DOT may mark lanes on interstates with 4 or more lanes to bar or allow trucks. Where signs say so, stay in the lanes they set.

O.C.G.A. § 40-6-52 Georgia DPS fact sheet #07

We read this on FindLaw's copy of the code, current as of March 28, 2024, and the Georgia Department of Public Safety fact sheet. Check the state law for the latest text.

Indiana

Keep right

Which trucks: A truck, truck tractor, road tractor, trailer, semitrailer or pole trailer. The sections we read give no weight.
Which roads: Interstate highways. With 3 or more lanes the same way, use the two far right lanes. Otherwise, use the far right lane.
The rule: Stay in the far right lane, or in the two far right lanes where the interstate has 3 or more lanes the same way.
Exceptions: Entering or leaving a highway, and a special hazard that needs another lane for safety. The far right lane rule also allows passing a slower vehicle.

IC 9-21-8-12 and 9-21-8-13 IC 9-21-8-13

We read this on FindLaw's copy of the code, current as of January 1, 2026. Check the state law for the latest text.

Michigan

Keep right

Which trucks: A truck with a gross weight of more than 10,000 pounds, a truck tractor, or a vehicle with a trailer or semitrailer.
Which roads: Roads with 3 or more lanes the same way, including freeways.
The rule: Use only the two lanes farthest to the right.
Exceptions: A reasonable distance when making a left turn, or where a special hazard needs another lane for safety.
Penalty: A civil infraction.
Good to know: Cities, villages, townships and counties may not make their own rule on this subject for freeways. The page we read is complete through Public Act 103 of 2026.

MCL 257.634(3)

Oregon

Keep right

Which trucks: A camper, any vehicle with a trailer, and any vehicle with a registration weight of 10,000 pounds or more.
Which roads: All roadways with 2 or more lanes for traffic going the same way.
The rule: Drive in the right lane.
Exceptions: Passing another vehicle when it does not get in the way of other traffic. Preparing to turn left. Emergency conditions. Avoiding traffic that is moving onto the right lane from an acceleration or merging lane. Following traffic control devices that direct you to another lane.
Penalty: A class B traffic violation.

ORS 811.325

We read this on oregon.public.law's copy of the ORS, accessed May 26, 2025. Check the state law for the latest text.

Washington

Keep right

Which trucks: A vehicle or combination over 10,000 pounds. For the left lane ban on limited access roads, any vehicle towing a trailer is covered too.
Which roads: Any roadway with 2 or more lanes the same way: use the right-hand lane. On a limited access roadway with 3 or more lanes the same way: stay out of the left-hand lane.
The rule: Over 10,000 pounds: drive only in the right-hand lane. On limited access roads with 3 or more lanes, no left-hand lane for those trucks or for any vehicle towing a trailer.
Exceptions: For the right lane rule: passing, going faster than the traffic flow, moving left to let traffic merge, and preparing for a left turn at an intersection, exit or driveway. For the left lane ban: preparing for a left turn. An HOV lane does not count as the left-hand lane.
Good to know: The state DOT and State Patrol set rules for other exceptions and for road segments that are exempt. It is also a traffic infraction to drive continuously in the left lane of a multilane road when that slows other traffic.

RCW 46.61.100(2) and (3)

States we have not checked yet

We add states in batches. A state on this list has not been read yet. That does not mean it has no truck lane rule. Follow the posted signs and check the state's law before you rely on this page.

Reports say California, Massachusetts and Tennessee have truck lane rules. We have not read those laws yet, so they are not on the cards above. Some states, such as Texas, Florida and Illinois, post truck lane signs on certain roads instead.

Alabama, Alaska, Arizona, Arkansas, California, Delaware, Florida, Hawaii, Idaho, Illinois, Iowa, Kansas, Louisiana, Maine, Maryland, Massachusetts, Minnesota, Mississippi, Montana, Nebraska, Nevada, New Hampshire, New Mexico, New York, North Dakota, Ohio, Oklahoma, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Vermont, West Virginia, Wisconsin, Wyoming.

How we checked these rules

We read each state's own law, or its highway department page where we could not open the law. Each card links to it.
We give a penalty only where we read it in the law.
4 cards were read on a copy of the law that is not the state's own site, or on a highway department page. Those cards say which one.
Weight lines differ. Some states start at 10,000 pounds, some at 18,001 or 26,001, and one at more than 48,000. Check the rating on your truck's plate and your registration.
Last checked October 16 and 21, 2026. States change these laws. Tell us if you see one that is out of date.

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It depends on the state and the road. Of the 14 states we have read so far, 9 bar trucks from the left lane and 5 keep trucks in the right lane or lanes. Even where no truck rule applies, most states have a keep-right rule for slow traffic. Check each state you run in.