Trucking Regulations by State

Compare weight limits, speed limits, diesel taxes, chain laws, and special rules across all 50 US states. Essential reference for CDL truck drivers and fleet managers.

Key Regulations Comparison

StateMax WeightTruck SpeedDiesel TaxMax Height
Alabama80,000 lbs federal limit70 mph (same as cars)$0.29 per gallon diesel (state)13'6"
Alaska80,000 lbs federal55 mph on most 2-lane highways$0.08 per gallon diesel (lowest in US)15 ft on most highways
Arizona80,000 lbs65 mph on I-10/I-17 in urban areas$0.26 per gallon diesel14 ft
Arkansas80,000 lbs65 mph on I-40/I-30 through Little Rock$0.285 per gallon diesel13'6"
California80,000 lbs55 mph statewide for vehicles over 10,000 GVWR$0.389 per gallon diesel (among highest in US)14 ft
Colorado80,000 lbs65 mph on mountain interstates (I-70 west of Denver)$0.205 per gallon diesel14'6" (lower on some mountain passes)
Connecticut80,000 lbs65 mph (same as cars on interstates)$0.491 per gallon diesel (among highest in US)13'6"
Delaware80,000 lbs65 mph (same as cars)$0.22 per gallon diesel13'6"
Florida80,000 lbs70 mph (same as cars)$0.36 per gallon diesel13'6"
Georgia80,000 lbs70 mph (same as cars)$0.37 per gallon diesel13'6"
Hawaii80,000 lbs on federal highways, varies by island and road55 mph maximum$0.16 per gallon diesel14 ft (varies by route, some as low as 12'6")
Idaho105,500 lbs on designated state routes with permit70 mph on rural interstates$0.32 per gallon diesel14 ft
Illinois80,000 lbs65 mph on some interstates$0.467 per gallon diesel13'6"
Indiana80,000 lbs65 mph on some urban interstates$0.56 per gallon diesel13'6"
Iowa80,000 lbs70 mph (same as cars)$0.324 per gallon diesel13'6"
Kansas80,000 lbs75 mph (same as cars)$0.26 per gallon diesel14 ft
Kentucky80,000 lbs70 mph (same as cars)$0.246 per gallon diesel13'6"
Louisiana80,000 lbs75 mph (same as cars on rural interstates)$0.20 per gallon diesel13'6"
Maine80,000 lbs65 mph (same as cars)$0.312 per gallon diesel13'6"
Maryland80,000 lbs65 mph on I-95 urban sections$0.417 per gallon diesel13'6"
Massachusetts80,000 lbs65 mph (same as cars)$0.24 per gallon diesel13'6"
Michigan164,000 lbs on designated state routes65 mph on rural interstates$0.488 per gallon diesel13'6"
Minnesota80,000 lbs70 mph (same as cars)$0.285 per gallon diesel13'6"
Mississippi80,000 lbs70 mph (same as cars)$0.188 per gallon diesel13'6"
Missouri80,000 lbs70 mph (same as cars)$0.195 per gallon diesel (increased annually through 2025 schedule)14 ft
Montana80,000 lbs70 mph on interstates day, 65 mph night$0.2975 per gallon diesel14 ft
Nebraska80,000 lbs75 mph (same as cars)$0.284 per gallon diesel14'6"
Nevada80,000 lbs70 mph on interstates$0.27 per gallon diesel14 ft
New Hampshire80,000 lbs65 mph (same as cars)$0.222 per gallon diesel13'6"
New Jersey80,000 lbs65 mph (same as cars)$0.489 per gallon diesel13'6"
New Mexico86,400 lbs on state routes75 mph (same as cars)$0.21 per gallon diesel14 ft
New York80,000 lbs65 mph (same as cars)$0.3205 per gallon diesel13'6"
North Carolina80,000 lbs70 mph (same as cars)$0.384 per gallon diesel13'6"
North Dakota105,500 lbs on state routes with permit75 mph (same as cars)$0.23 per gallon diesel14 ft
Ohio80,000 lbs65 mph on some interstates$0.385 per gallon diesel13'6"
Oklahoma90,000 lbs on state routes75 mph (same as cars)$0.19 per gallon diesel13'6"
Oregon80,000 lbs65 mph on interstates$0.40 per gallon diesel14 ft
Pennsylvania80,000 lbs70 mph (same as cars on interstates)$0.741 per gallon diesel (HIGHEST in the US)13'6"
Rhode Island80,000 lbs65 mph (same as cars)$0.37 per gallon diesel13'6"
South Carolina80,000 lbs70 mph (same as cars)$0.28 per gallon diesel13'6"
South Dakota80,000 lbs70 mph on interstates$0.30 per gallon diesel14 ft
Tennessee80,000 lbs70 mph (same as cars)$0.27 per gallon diesel13'6"
Texas80,000 lbs75-85 mph (varies by road, same as cars)$0.20 per gallon diesel14 ft
Utah80,000 lbs70 mph on interstates$0.345 per gallon diesel14 ft
Vermont80,000 lbs65 mph (same as cars)$0.31 per gallon diesel13'6"
Virginia80,000 lbs70 mph (same as cars)$0.292 per gallon diesel13'6"
Washington105,500 lbs on state routes with permit60 mph on some urban interstates$0.494 per gallon diesel14 ft
West Virginia80,000 lbs70 mph (same as cars)$0.357 per gallon diesel13'6"
Wisconsin80,000 lbs70 mph (same as cars)$0.326 per gallon diesel13'6"
Wyoming117,000 lbs on state routes with permit70 mph on interstates$0.24 per gallon diesel14 ft

Browse Regulations by State

Alabama

80,000 lbs federal limit | 70 mph (same as cars)

AL

Alaska

80,000 lbs federal | 55 mph on most 2-lane highways

AK

Arizona

80,000 lbs | 65 mph on I-10/I-17 in urban areas

AZ

Arkansas

80,000 lbs | 65 mph on I-40/I-30 through Little Rock

AR

California

80,000 lbs | 55 mph statewide for vehicles over 10,000 GVWR

CA

Colorado

80,000 lbs | 65 mph on mountain interstates (I-70 west of Denver)

CO

Connecticut

80,000 lbs | 65 mph (same as cars on interstates)

CT

Delaware

80,000 lbs | 65 mph (same as cars)

DE

Florida

80,000 lbs | 70 mph (same as cars)

FL

Georgia

80,000 lbs | 70 mph (same as cars)

GA

Hawaii

80,000 lbs on federal highways, varies by island and road | 55 mph maximum

HI

Idaho

105,500 lbs on designated state routes with permit | 70 mph on rural interstates

ID

Illinois

80,000 lbs | 65 mph on some interstates

IL

Indiana

80,000 lbs | 65 mph on some urban interstates

IN

Iowa

80,000 lbs | 70 mph (same as cars)

IA

Kansas

80,000 lbs | 75 mph (same as cars)

KS

Kentucky

80,000 lbs | 70 mph (same as cars)

KY

Louisiana

80,000 lbs | 75 mph (same as cars on rural interstates)

LA

Maine

80,000 lbs | 65 mph (same as cars)

ME

Maryland

80,000 lbs | 65 mph on I-95 urban sections

MD

Massachusetts

80,000 lbs | 65 mph (same as cars)

MA

Michigan

164,000 lbs on designated state routes | 65 mph on rural interstates

MI

Minnesota

80,000 lbs | 70 mph (same as cars)

MN

Mississippi

80,000 lbs | 70 mph (same as cars)

MS

Missouri

80,000 lbs | 70 mph (same as cars)

MO

Montana

80,000 lbs | 70 mph on interstates day, 65 mph night

MT

Nebraska

80,000 lbs | 75 mph (same as cars)

NE

Nevada

80,000 lbs | 70 mph on interstates

NV

New Hampshire

80,000 lbs | 65 mph (same as cars)

NH

New Jersey

80,000 lbs | 65 mph (same as cars)

NJ

New Mexico

86,400 lbs on state routes | 75 mph (same as cars)

NM

New York

80,000 lbs | 65 mph (same as cars)

NY

North Carolina

80,000 lbs | 70 mph (same as cars)

NC

North Dakota

105,500 lbs on state routes with permit | 75 mph (same as cars)

ND

Ohio

80,000 lbs | 65 mph on some interstates

OH

Oklahoma

90,000 lbs on state routes | 75 mph (same as cars)

OK

Oregon

80,000 lbs | 65 mph on interstates

OR

Pennsylvania

80,000 lbs | 70 mph (same as cars on interstates)

PA

Rhode Island

80,000 lbs | 65 mph (same as cars)

RI

South Carolina

80,000 lbs | 70 mph (same as cars)

SC

South Dakota

80,000 lbs | 70 mph on interstates

SD

Tennessee

80,000 lbs | 70 mph (same as cars)

TN

Texas

80,000 lbs | 75-85 mph (varies by road, same as cars)

TX

Utah

80,000 lbs | 70 mph on interstates

UT

Vermont

80,000 lbs | 65 mph (same as cars)

VT

Virginia

80,000 lbs | 70 mph (same as cars)

VA

Washington

105,500 lbs on state routes with permit | 60 mph on some urban interstates

WA

West Virginia

80,000 lbs | 70 mph (same as cars)

WV

Wisconsin

80,000 lbs | 70 mph (same as cars)

WI

Wyoming

117,000 lbs on state routes with permit | 70 mph on interstates

WY