AL
Alabama Southeast IFTA Diesel: $0.300/gal
Kingpin-to-Rear-Axle No specific kingpin distance restriction on National Network / Interstate routes.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Bridge Formula applies to all tandem spacings under 8 feet.
AK
Alaska West IFTA Diesel: $0.080/gal Kingpin-to-Rear-Axle No maximum kingpin distance restriction on designated highways.
Axle Weight Limits Single: 20,000 lbs | Tandem: 38,000 lbs on certain state highways (34,000 lbs on Interstates)
Max Gross Weight 119,000 lbs on designated multi-trailer configurations
Spring Frost Policy Late March – June: Strict seasonal weight restrictions (up to 50% axle reductions during spring thaw).
Enforcement Advisory: Extreme cold weather permits and chain requirements in effect during winter months.
AZ
Arizona Southwest IFTA Diesel: $0.270/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network / Interstate highways.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Port of Entry weigh stations mandatory for all commercial motor vehicles upon entry.
AR
Arkansas Southeast IFTA Diesel: $0.285/gal
Kingpin-to-Rear-Axle No kingpin restriction on Interstate / designated network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Tandem axle tolerance of 1,000 lbs occasionally enforced with strict bridge formula checks.
CA
California West IFTA Diesel: $0.441/gal Kingpin-to-Rear-Axle STRICT 40' 0" (480 in) max from kingpin to center of rear axle on 53ft trailers (or 38' to center of rear axle for two axles).
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: HIGH CITATION RISK: Sliding tandems past 40 feet results in mandatory inspection citations. CARB engine compliance required.
CO
Colorado West IFTA Diesel: $0.220/gal Kingpin-to-Rear-Axle No kingpin distance restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 36,000 lbs (state highways) / 34,000 lbs (Interstates)
Max Gross Weight 85,000 lbs (non-Interstate state network) / 80,000 lbs (Interstate)
Spring Frost Policy Spring thaw as posted: Local mountain county roads impose posted axle restrictions.
Enforcement Advisory: Chain Law (Code 15 / Code 18) active on I-70 between Sept 1 and May 31. Minimum tread depth 4/32".
CT
Connecticut Northeast IFTA Diesel: $0.492/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle on 53ft semitrailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: CT Highway Use Fee (HUF) mileage tax applies to trucks with GVWR over 26,000 lbs.
DE
Delaware Northeast IFTA Diesel: $0.220/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle on 53ft trailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Strict weight monitoring near Delaware Memorial Bridge approaches on I-295.
FL
Florida Southeast IFTA Diesel: $0.384/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear tandem axle assembly.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs (up to 44,000 lbs with state-specific axle spread spacing allowances)
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Agricultural inspection stations on I-10, I-75, and I-95 are mandatory stops for all commercial trucks.
GA
Georgia Southeast IFTA Diesel: $0.354/gal
Kingpin-to-Rear-Axle 41' 0" (492 in) recommended; no statutory fine if overall semi length complies with federal standards.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs (37,950 lbs on non-Interstate with 5% timber/agriculture tolerance)
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Heavy enforcement along I-75, I-85, and I-285 Atlanta perimeter bypass.
ID
Idaho West IFTA Diesel: $0.320/gal Kingpin-to-Rear-Axle No kingpin restriction on National Network routes.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 105,500 lbs permitted on designated state highway routes with off-tracking permits.
Spring Frost Policy February – May: District-by-district spring breakup limits posted on local non-Interstates.
Enforcement Advisory: Overweight configurations up to 129,000 lbs permitted on designated heavy-haul corridors.
IL
Illinois Midwest IFTA Diesel: $0.545/gal
Kingpin-to-Rear-Axle STRICT 42' 6" (510 in) max from kingpin to center of rear axle assembly on Class I & II routes (45' 6" on Interstates).
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: City of Chicago low clearance overpasses (under 13'6") are strictly enforced with steep municipal fines.
IN
Indiana Midwest IFTA Diesel: $0.590/gal
Kingpin-to-Rear-Axle 43' 0" (516 in) max on designated highway network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Toll road overweight permits allow up to 127,400 lbs on Indiana East-West Toll Road.
IA
Iowa Midwest IFTA Diesel: $0.325/gal Kingpin-to-Rear-Axle No kingpin restriction on designated highway network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs (86,000 lbs on non-Interstate state network with proper axle configurations)
Spring Frost Policy Late Feb – Early April: Embargoes posted on secondary rural county roads during spring thaw.
Enforcement Advisory: DOT weigh stations active on I-80 and I-35 with thermal tire & brake screening sensors.
KS
Kansas Midwest IFTA Diesel: $0.270/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 85,500 lbs on non-Interstate state routes (80,000 lbs on Interstate)
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Turnpike (I-35) permits triple trailers up to 110,000 lbs.
KY
Kentucky Southeast IFTA Diesel: $0.239/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network routes.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: KY Weight Distance Tax (KYU number) required for all carriers operating over 59,999 lbs.
LA
Louisiana Southeast IFTA Diesel: $0.200/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network routes.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs (up to 83,400 lbs with state-issued annual container permits)
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: I-10 Atchafalaya Basin Bridge speed limit (60 mph for trucks) enforced by automated camera timing.
ME
Maine Northeast IFTA Diesel: $0.312/gal Kingpin-to-Rear-Axle 45' 6" max on 53ft semitrailers on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 100,000 lbs allowed on 6-axle configurations on Maine Interstate network.
Spring Frost Policy Late Feb – May 15: Heavy spring thaw road closures ('Frozen Road Law' transition notices posted online).
Enforcement Advisory: Tri-axle groupings allowed 54,000 lbs with state axle spacing permits.
MD
Maryland Northeast IFTA Diesel: $0.480/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle on 53ft semitrailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Baltimore Harbor & Fort McHenry Tunnels prohibit hazmat, propane, and excess fuel canisters.
MA
Massachusetts Northeast IFTA Diesel: $0.240/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle on 53ft semitrailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs (99,000 lbs permitted on 5-axle splits under Mass Pike tandem permits)
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Storrow Drive and Memorial Drive in Boston strictly prohibit commercial trucks (low bridge strikes).
MI
Michigan Midwest IFTA Diesel: $0.354/gal Strict Kingpin Limit Spring Thaw Laws Kingpin-to-Rear-Axle 40' 6" (486 in) ± 6 inches from kingpin to center of rear axle assembly.
Axle Weight Limits Single: 18,000 lbs (on state trunklines) | Tandem: 32,000 lbs (on state trunklines) / 34,000 lbs (Interstates)
Max Gross Weight 164,000 lbs allowed on multi-axle configurations (up to 11 axles) under Michigan Weight Law.
Spring Frost Policy March – May: STRICTEST SPRING WEIGHT RESTRICTIONS: Axle loads reduced by 25% on concrete and 35% on asphalt roads.
Enforcement Advisory: Seasonal frost law enforcement is highly active across all county road commissions.
MN
Minnesota Midwest IFTA Diesel: $0.285/gal Kingpin-to-Rear-Axle 43' 0" (516 in) max from kingpin to center of rear axle on 53ft trailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs (90,000 lbs winter increase during frozen road season)
Spring Frost Policy March – May (Zone based): Seasonal Spring Load Restrictions (SLR) split into 6 frost zones with 5-ton, 7-ton, and 9-ton axle caps.
Enforcement Advisory: Winter Weight Increases (WWI) provide a 10% weight bonus once frost penetrates 16+ inches.
MS
Mississippi Southeast IFTA Diesel: $0.184/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs (84,000 lbs on designated 4-lane state highways)
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: One of the lowest fuel tax rates in the nation ($0.184/gal).
MO
Missouri Midwest IFTA Diesel: $0.270/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network / Interstate highways.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Commercial zones in St. Louis and Kansas City permit up to 22,400 lbs on single axles.
MT
Montana West IFTA Diesel: $0.330/gal Kingpin-to-Rear-Axle No kingpin restriction on designated highway routes.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 131,060 lbs allowed on multi-trailer configurations with proper Bridge Formula B spacing.
Spring Frost Policy Feb – May: Spring breakup restrictions posted by Montana MDT on non-Interstate secondary roads.
Enforcement Advisory: Triple trailer configurations permitted on all designated Interstate routes.
NE
Nebraska Midwest IFTA Diesel: $0.315/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 95,000 lbs allowed on state highways with Bridge Formula B spacing (80,000 lbs Interstate).
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: High crosswinds on I-80 frequently trigger blow-over alerts for empty/light trailers.
NV
Nevada West IFTA Diesel: $0.270/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 129,000 lbs permitted on designated state highway network.
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Longer Combination Vehicles (LCVs) permitted throughout state highway network.
NH
New Hampshire Northeast IFTA Diesel: $0.222/gal Strict Kingpin Limit Spring Thaw Laws Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle on 53ft trailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs (up to 99,000 lbs on 6 axles on non-Interstate state network)
Spring Frost Policy March – May: Seasonal posted roads with 20% to 50% load limits during mud season.
Enforcement Advisory: No sales tax on trucking maintenance items or parts purchased inside state.
NJ
New Jersey Northeast IFTA Diesel: $0.449/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle on 53ft trailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: New Jersey Turnpike imposes lane restrictions (trucks must use outer roadway only).
NM
New Mexico Southwest IFTA Diesel: $0.210/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 86,400 lbs allowed on state routes with proper spacing (80,000 lbs on Interstate).
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: NM Weight Distance Tax required for all carriers operating vehicles with gross weight over 26,000 lbs.
NY
New York Northeast IFTA Diesel: $0.395/gal Strict Kingpin Limit Spring Thaw Laws Kingpin-to-Rear-Axle STRICT 41' 0" (492 in) max from kingpin to center of rear axle assembly (43' on designated qualifying highways).
Axle Weight Limits Single: 22,400 lbs (state highways) / 20,000 lbs (Interstates) | Tandem: 36,000 lbs (state highways) / 34,000 lbs (Interstates)
Max Gross Weight 80,000 lbs
Spring Frost Policy Late Feb – Early May: Posted seasonal weight limits on upstate county and secondary routes.
Enforcement Advisory: STRICTEST PARKWAY BANS: All commercial trucks are completely banned from all New York State Parkways. Low stone overpasses cause catastrophic strikes.
NC
North Carolina Southeast IFTA Diesel: $0.404/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle on 53ft semitrailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Mandatory weigh-in-motion (WIM) bypass screening along I-85 and I-95.
ND
North Dakota Midwest IFTA Diesel: $0.230/gal Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 105,500 lbs permitted on designated state highway network.
Spring Frost Policy March – May: Rigid spring load limits (legal, 7-ton, 6-ton, and 5-ton limits posted by NDDOT).
Enforcement Advisory: Severe winter windchill warnings require block heaters and fuel anti-gel additives below -20°F.
OH
Ohio Midwest IFTA Diesel: $0.470/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs (127,400 lbs allowed on Ohio Turnpike with long combination permit)
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Heavy enforcement along I-71, I-75, and I-80 corridor.
OK
Oklahoma Southwest IFTA Diesel: $0.190/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 90,000 lbs allowed on state highway network with Bridge Formula spacing (80,000 lbs Interstate).
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: PikePass toll network automated for commercial fleet discounts.
OR
Oregon West IFTA Diesel: Weight-Mile Tax (No IFTA)
Kingpin-to-Rear-Axle No kingpin restriction on Interstate / designated network (must follow off-tracking rules).
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 105,500 lbs permitted with Oregon Weight-Mile permit.
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: SPECIAL IFTA EXCLUSION: Oregon does not participate in fuel tax under IFTA. Carriers must file Oregon Weight-Mile Tax (WMT) reporting.
PA
Pennsylvania Northeast IFTA Diesel: $0.785/gal Strict Kingpin Limit Spring Thaw Laws Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle assembly on 53ft semitrailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy Late winter / spring: PennDOT posts 10-ton limits on secondary rural roads during seasonal thaw.
Enforcement Advisory: HIGHEST IFTA DIESEL TAX IN THE NATION ($0.785/gal). Drivers must account for fuel tax differences when planning fuel stops.
RI
Rhode Island Northeast IFTA Diesel: $0.350/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle assembly.
Axle Weight Limits Single: 22,400 lbs (state routes) / 20,000 lbs (Interstates) | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: I-95 bridge repair zones have reduced lane widths and strict speed enforcement.
SC
South Carolina Southeast IFTA Diesel: $0.280/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle on 53ft trailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 35,200 lbs (with state 10% statutory scale tolerance)
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Port of Charleston container corridors have dedicated overweight permits up to 100,000 lbs.
SD
South Dakota Midwest IFTA Diesel: $0.280/gal Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 129,000 lbs allowed on designated state highway network.
Spring Frost Policy Late Feb – Early May: Spring load limits posted on secondary state and county asphalt highways.
Enforcement Advisory: No state income tax; favorable for owner-operator base-state corporate registrations.
TN
Tennessee Southeast IFTA Diesel: $0.270/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear tandem axle assembly.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: I-24 Monteagle Mountain grade (6% downgrade) requires strict adherence to brake check runaway truck ramps.
TX
Texas Southwest IFTA Diesel: $0.200/gal
Kingpin-to-Rear-Axle No kingpin restriction on Interstate and designated freight highway network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs (84,000 lbs allowed on non-Interstate under Texas 2060 permit)
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Texas 2060 annual overweight permits widely used for agricultural and oilfield freight operations.
UT
Utah West IFTA Diesel: $0.365/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 129,000 lbs allowed on state highways under Utah Long Combination Vehicle permits.
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Port of entry weigh stations mandatory upon state line crossing.
VT
Vermont Northeast IFTA Diesel: $0.320/gal Strict Kingpin Limit Spring Thaw Laws Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle assembly.
Axle Weight Limits Single: 22,400 lbs (state highways) / 20,000 lbs (Interstates) | Tandem: 36,000 lbs (state highways) / 34,000 lbs (Interstates)
Max Gross Weight 80,000 lbs (up to 99,000 lbs on 6 axles on Interstates under federal exemption)
Spring Frost Policy Late Feb – May: Extensive spring mud season posted closures on town highways.
Enforcement Advisory: Heavy timber haul corridor permits provide enhanced axle allowances.
VA
Virginia Southeast IFTA Diesel: $0.395/gal Kingpin-to-Rear-Axle 41' 0" (492 in) max from kingpin to center of rear axle on 53ft semitrailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Fancy Gap on I-77 known for extreme dense fog and high-wind truck rollovers.
WA
Washington West IFTA Diesel: $0.494/gal Kingpin-to-Rear-Axle No kingpin distance restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 105,500 lbs permitted with annual state highway permits.
Spring Frost Policy Feb – April: Emergency road closures and seasonal weight limits posted during freeze-thaw cycles in Eastern WA.
Enforcement Advisory: Snoqualmie Pass (I-90) chain requirements strictly enforced during winter snow events.
WV
West Virginia Southeast IFTA Diesel: $0.357/gal
Kingpin-to-Rear-Axle 37' 0" (444 in) on non-designated secondary routes (no limit on Interstates).
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: Mountain grades on I-64 and I-79 require proactive downshifting and engine retarder use.
WI
Wisconsin Midwest IFTA Diesel: $0.329/gal Kingpin-to-Rear-Axle STRICT 43' 0" (516 in) max from kingpin to center of rear axle on 53ft semitrailers.
Axle Weight Limits Single: 20,000 lbs | Tandem: 34,000 lbs
Max Gross Weight 80,000 lbs (98,000 lbs on 6 axles under frozen road declarations)
Spring Frost Policy Early March – Mid May: WisDOT Class II road spring thaw embargoes reduce axle limits by 20% to 30%.
Enforcement Advisory: Frozen Road Declarations provide up to 18% weight increases in winter months.
WY
Wyoming West IFTA Diesel: $0.240/gal
Kingpin-to-Rear-Axle No kingpin restriction on National Network.
Axle Weight Limits Single: 20,000 lbs | Tandem: 36,000 lbs on state routes (34,000 lbs on Interstates)
Max Gross Weight 117,000 lbs permitted under Wyoming Bridge Formula table.
Spring Frost Policy None (Year-Round Standard)
Enforcement Advisory: I-80 Elk Mountain corridor subject to frequent closures for high wind gusts exceeding 60 mph.
ON
Ontario (Canada) Canada IFTA Diesel: $0.520/gal Kingpin-to-Rear-Axle 41' 0" (12.5 meters) max from kingpin to center of rear tandem axle under SPIF regulations.
Axle Weight Limits Single: 22,046 lbs (10,000 kg) | Tandem: 37,478 lbs (17,000 kg with SPIF compliance)
Max Gross Weight 88,184 lbs (40,000 kg for 5-axle) / up to 139,993 lbs (63,500 kg for multi-axle SPIF)
Spring Frost Policy March – May: Reduced Load Period (RLP) in effect on designated secondary highways.
Enforcement Advisory: SPIF (Safe, Productive, Infrastructure-Friendly) vehicle compliance mandatory for maximum weights.
QC
Quebec (Canada) Canada IFTA Diesel: $0.580/gal Kingpin-to-Rear-Axle 41' 0" (12.5 meters) max from kingpin to center of rear axle assembly.
Axle Weight Limits Single: 22,046 lbs (10,000 kg) | Tandem: 37,478 lbs (17,000 kg)
Max Gross Weight 88,184 lbs (40,000 kg) standard 5-axle; up to 126,765 lbs (57,500 kg) on tridem splits
Spring Frost Policy Mid-March – Mid-May (Thaw Zones 1, 2, 3): Rigid spring thaw zones with 10% to 20% load cuts enforced by Contrôle routier Québec.
Enforcement Advisory: French language commercial bill of lading rules apply. Winter tire / chain regulations active.