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Truck Axle Weight Limits by State

In Alabama (AL), the legal weight for a steering axle is 12,000 lbs, which can be increased to 15,000 lbs with a permit. A single axle can carry up to 20,000 lbs,
a double axle up to 34,000 lbs, and a tridem axle up to 42,000 lbs, with a maximum gross weight of 80,000 lbs.
In Alaska (AK), the steering axle weight is 20,000 lbs with no specified permit weight. A single axle can carry 20,000 lbs, a double axle 34,000 lbs, and a tridem axle 42,000 lbs
according to the Federal Bridge Formula. For a single axle with a minimum spacing of 8'1", the weight limit is 20,000 pounds.
In Arizona (AZ), the steering axle and single axle both have a weight limit of 20,000 lbs. The double axle can carry up to 34,000 lbs.
The gross weight is determined per state weight regulations and must be 80,000 lbs for vehicles with five axles or more.
In Arkansas (AR), the steering axle legal weight is 12,000 lbs, which can be increased to 20,000 lbs with a permit. A single axle can carry 20,000 lbs, a double axle 34,000 lbs, and a tridem axle 50,000 lbs. The maximum gross weight is 80,000 lbs.
In California (CA), the legal weight for a steering axle is 12,500 lbs. A single axle can carry 20,000 lbs, and a double axle up to 34,000 lbs.
The gross weight is capped at 80,000 lbs. Note that 8'-6" spacing is rounded up to 9 feet, but no specific weight is defined in statute for this spacing.
In Colorado (CO), the weight limit is 600 pounds per inch of width for the steering axle, with a limit of 18,000 lbs due to single pneumatic tire wheels. A single axle can carry 20,000 lbs, a double axle 36,000 lbs, with the gross weight following the Federal Bridge Formula (FBF) and capped at 80,000 lbs.
In Connecticut (CT), the steering axle weight can be either 12,000 or 15,000 lbs. A single axle can carry up to 22,000 lbs and a double axle up to 34,000 lbs, with the gross weight determined by the Federal Bridge Formula and capped at 80,000 lbs.
In Delaware (DE), the steering axle weight can also be either 12,000 or 15,000 lbs. A single axle can carry 20,000 lbs, a double axle 34,000 lbs, and a tridem axle 60,000 lbs, with the gross weight capped at 80,000 lbs.
In the District of Columbia (DC), the steering axle weight can be 12,000 or 15,000 lbs. A single axle can carry 21,000 lbs, a double axle 37,000 lbs, with the gross weight determined by the district weight table and capped at 79,000 lbs.
In Florida (FL), the weight limit for a single axle is 22,000 lbs and for a double axle is 40,000 lbs, with the gross weight following the Federal Bridge Formula and capped at 80,000 lbs.
In Georgia (GA), the steering axle weight is 20,340 lbs. A single axle can carry 20,340 lbs and a double axle 34,000 lbs, with the gross weight determined by the Federal Bridge Formula and capped at 80,000 lbs.
In Hawaii (HI), the single axle weight limit is 22,500 lbs, a double axle can carry 34,000 lbs, and a tridem axle 42,500 lbs, with the gross weight capped at 80,000 lbs.
In Idaho (ID), the steering axle weight can be either 12,000 or 15,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Illinois (IL), the legal weight for a steering axle is 12,000 lbs, which can be increased to 20,000 lbs with a permit. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, and a tridem axle up to 42,500 lbs, with a maximum gross weight of 80,000 lbs.
In Indiana (IN), the steering axle weight is 12,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, and a tridem axle up to 50,000 lbs, with the gross weight capped at 80,000 lbs.
In Iowa (IA), the steering axle weight is not specified. A single axle can carry up to 20,000 lbs, a double axle up to 35,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Kansas (KS), the steering axle weight is not specified. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, and a tridem axle up to 43,500 lbs, with the gross weight capped at 80,000 lbs.
In Kentucky (KY), the steering axle weight is 20,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, and a tridem axle up to 48,000 lbs, with the gross weight capped at 80,000 lbs.
In Louisiana (LA), the steering axle weight is 13,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, and a tridem axle up to 42,000 lbs, with the gross weight capped at 80,000 lbs.
In Maine (ME), the steering axle weight is 15,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, and a tridem axle up to 45,000 lbs, with the gross weight capped at 80,000 lbs.
In Maryland (MD), the steering axle weight is 20,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Massachusetts (MA), the steering axle weight is not specified. A single axle can carry up to 18,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Michigan (MI), the steering axle weight is 18,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Minnesota (MN), the steering axle weight is 10,000 lbs. A single axle can carry up to 34,000 lbs, a double axle up to 42,000 lbs, with the gross weight capped at 80,000 lbs.
In Mississippi (MS), the steering axle weight is 12,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Missouri (MO), the steering axle weight is 12,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Montana (MT), the weight limit is 500 pounds per inch of tire width for the steering axle. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Nebraska (NE), the steering axle weight is 20,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Nevada (NV), the weight limit is 500 pounds per inch of tire width for the steering axle. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In New Hampshire (NH), the steering axle weight is 20,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In New Jersey (NJ), the single axle weight is limited to 20,000 lbs, the double axle to 34,000 lbs, with no specified tridem axle weight and a gross weight limit of 80,000 lbs.
In New Mexico (NM), the steering axle weight can be 12,000 or 15,000 lbs, with a single axle limit of 17,000 lbs, double axle 21,600 lbs, and the gross weight determined by the state weight table and capped at 80,000 lbs.
In New York (NY), the steering axle weight is 22,400 lbs according to Google, with a single axle limit of 20,000 lbs, double axle 34,000 lbs, and the gross weight determined by the Federal Bridge Formula and capped at 80,000 lbs.
In North Carolina (NC), the steering axle weight is 20,000 lbs, with a single axle limit of 25,000 lbs, double axle 50,000 lbs, tridem axle 60,000 lbs, and the gross weight capped at 80,000 lbs.
In North Dakota (ND), the steering axle weight shall not exceed 20,000 lbs when traveling. A single axle can carry up to 20,000 lbs, a double axle up to 17,000 lbs, with the gross weight determined by the Federal Bridge Formula and capped at 80,000 lbs.
In Ohio (OH), the steering axle weight is 20,000 lbs. A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the Federal Bridge Formula and capped at 80,000 lbs.
In Oklahoma (OK), the steering axle weight shall not exceed 15,000 lbs or 600 pounds per nominal inch of tire tread width. A single axle can carry up to 20,000 lbs, a double axle up to 40,000 lbs, a tridem axle up to 60,000 lbs, and the gross weight capped at 84,000 lbs.
In Oregon (OR), the single axle weight is limited to 20,000 lbs and the double axle to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Pennsylvania (PA), the steering axle weight is 20,000 lbs, a single axle can carry up to 20,000 lbs, a double axle up to 36,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs. For tandem axles under 6 feet, specific regulations apply.
In Rhode Island (RI), the steering axle weight is 24,000 lbs, a single axle
can carry up to 22,400 lbs, a double axle up to 36,000 lbs, and the gross weight is capped at 80,000 lbs.
In South Carolina (SC), the steering axle weight is not specified.
A single axle can carry up to 10,000 lbs, a double axle up to 35,200 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In South Dakota (SD), the steering axle weight is not specified.
A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the Federal Bridge Formula and capped at 80,000 lbs.
In Tennessee (TN), the steering axle weight is not specified.
A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, a tridem axle up to 54,000 lbs, with the gross weight capped at 80,000 lbs.
In Texas (TX), the steering axle weight is 20,000 lbs.
A single axle can carry up to 20,000 lbs, a double axle up to 37,400 lbs, a tridem axle up to 54,000 lbs, with the gross weight capped at 80,000 lbs.
In Utah (UT), the single axle weight is limited to 20,000 lbs
and the double axle to 34,000 lbs, with all weights needing to comply with the bridge formula.
In Vermont (VT), the steering axle weight is 12,000 lbs. A single axle can carry up to 22,400 lbs, a double axle up to 42,000 lbs,
a tridem axle up to 54,000 lbs, with the gross weight capped at 80,000 lbs.
In Virginia (VA), the steering axle weight is not specified.
A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight capped at 80,000 lbs.
In Washington (WA), the weight limit is 600 pounds per inch of tire width for the steering axle.
A single axle can carry up to 20,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In West Virginia (WV), the steering axle weight is 20,000 lbs.
A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the Federal Bridge Formula and capped at 80,000 lbs.
In Wisconsin (WI), the steering axle weight is 13,000 lbs.
A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, with the gross weight determined by the state weight table and capped at 80,000 lbs.
In Wyoming (WY), the steering axle weight is not specified.
A single axle can carry up to 20,000 lbs, a double axle up to 34,000 lbs, a tridem axle up to 42,000 lbs, with the gross weight capped at 80,000 lbs.
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