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Kentucky trucking

Kentucky oversize and overweight permits

Kentucky issues oversize and overweight permits through the Division of Motor Carriers on the Motor Carrier Portal. Legal size and weight limits run to the standard interstate figures, with a taller allowance for car haulers, and anything past them needs a single-trip or annual permit. Escort counts step up by width, height, and length, and a route survey applies to the tallest loads.

By Evan Reid, Founder of Haul Handbook · Updated Jul 19, 2026

Width
8.5 ft8 ft 6 in on interstates and designated highways. On all other state-maintained highways the legal width is 8 ft 0 in.
Height
13.5 ft13 ft 6 in. Car haulers (automobile transporters) may operate up to 14 ft 0 in on interstates and designated highways.
Gross weight
80,000 lbTotal gross weight of vehicle and load shall not exceed 80,000 lbs on interstates and designated highways (KRS 189.222, 603 KAR 5:070).
Length: motor_truck_ft
45 ft
Length: semitrailer_single_combination_ft
53 ft
Length: dual_trailer_each_ft
28 ft
Length: dual_trailer_note
28 ft each when operated in a tractor-semitrailer-trailer combination.
Length: other_highways_single_unit_ft
45 ft
Length: other_highways_combination_ft
65 ft
Off interstate limits: summary
On other state-maintained highways, maximum gross weight is set by highway classification: Class A 44,000 lbs, Class AA 62,000 lbs, Class AAA 80,000 lbs. Legal width on these roads is 8 ft; combinations are limited to 65 ft.

Axle weight limits

Gross weight is one ceiling; each axle group carries its own limit, and a load can be legal on gross weight yet overweight on an axle. Exceeding any of these needs an overweight permit.

Kentucky legal axle weight limits by axle group
Axle groupMaximum weight
Single axle20,000 lb
Tandem axle (two axles in a tandem arrangement)34,000 lb
Three axles48,000 lb

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Permit fees

Single trip
A single-trip OW/OD permit costs 60 USD and is valid for 10 days. A payment service fee applies: 4 percent for credit card, or a 3 USD ACH fee. Metal commodities have a dedicated single-trip permit at 100 USD. How overweight fees scale by weight/distance beyond the base permit is not published on the fee page and is left blank rather than invented.
Annual permit
Annual (12-month) permits by category, per the Division of Motor Carriers OW/OD fee schedule.
Annual eligibility
Annual permits are issued by category (non-divisible, farm, metal commodities, non-divisible steel, feed, manufactured home). Non-divisible and farm annual permits are tiered at under 14 ft wide and 14 to 16 ft wide. Allow 10 to 14 business days for processing.

Single-trip permit fee schedule

A single-trip permit stacks a base fee with a weight-tiered maintenance fee, and the heaviest loads add a supervision fee.

Kentucky single-trip oversize permit fee components
Fee componentApplies toAmount
Single-trip OW/OD permit (base, 10 days)Not confirmed$60
Metal commodities single-trip permitNot confirmed$100
Credit-card service fee4 percent of permit totalNot confirmed
ACH payment feeNot confirmed$3

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To price a specific load, try the oversize permit cost estimator, or compare every state on the national oversize permit table.

To see how these fees combine on real loads, walk through Kentucky oversize permit cost worked examples.

Escort thresholds

DimensionThresholdEscortsPolice escort
width (multi-lane highway)over 12 ft1 rearNo
width (multi-lane highway)over 14 ft1 front and 1 rearNo
width (multi-lane highway)over 16 ft2 front and 2 rearNo
width (two-lane highway)over 12 ft1 front and 1 rearNo
width (two-lane highway)over 16 ft2 front and 2 rearNo
height (both highway types)over 14 ft 11 in1 front escort with a height-pole attachmentNo
length (multi-lane highway)110 ft and over1 rearNo
length (multi-lane highway)120 ft and over1 front and 2 rearNo
length (two-lane highway)75 ft and over1 frontNo
length (two-lane highway)85 ft and over1 front and 1 rearNo
length (two-lane highway)120 ft and over1 front and 2 rearNo

What the escort itself has to be

Hitting the threshold is only half of it. The escort vehicle, its equipment, its driver's certification and where it rides are all regulated, and the carrier is the one holding the permit when they are not met.

Escort rules
Escort counts are stated as front/rear positions. Kentucky's escort page does not specify a mandatory law-enforcement (police) escort tier; recorded as unstated rather than invented. Heights over 15 ft 6 in require an OW/OD Proposed Route Survey (form TC 95-625) before movement.

Escort rules beyond the thresholds

Knowing when you need an escort is half of it. These are the Kentucky rules on who may run one, what the vehicle has to carry, and how the move is conducted.

Escort notes
Escort counts are stated as front/rear positions. Kentucky's escort page does not specify a mandatory law-enforcement (police) escort tier; recorded as unstated rather than invented. Heights over 15 ft 6 in require an OW/OD Proposed Route Survey (form TC 95-625) before movement.

Travel restrictions

Daylight only
Manufactured/mobile home moves are restricted to daylight hours, Monday through Saturday, with no Sunday travel. Other OW/OD loads may generally travel 24 hours unless the permit states otherwise.
Curfews
Rush-hour restriction in five counties (Boone, Campbell, Fayette, Jefferson, Kenton) Monday through Friday from 7:00 a.m. to 9:00 a.m. and 4:00 p.m. to 6:00 p.m. A load originating in Fayette County is exempt from rush-hour restrictions on I-64 and I-75 in Fayette County and on connecting routes up to 3 miles from those interstates.
Weekend / holiday
Kentucky has no holiday travel restrictions. Manufactured/mobile home moves are prohibited on Sundays.
Wind / weather
A load more than 12 ft wide shall not move on a highway when the National Weather Service has issued a wind advisory, or when adverse weather or road conditions would make the move dangerous.

Superload and beyond-permit review

Loads past the standard single-trip permit thresholds get individual state review rather than an off-the-shelf permit.

Kentucky does not publish a single numeric 'superload' class on the OW/OD pages. The practical review triggers are the escort/route-survey thresholds: a height over 15 ft 6 in requires an OW/OD Proposed Route Survey (form TC 95-625), and widths over 16 ft or lengths over 120 ft require the maximum front-and-rear escort configuration.

Route survey form
TC 95-625 (OW/OD Proposed Route Survey)

More Kentucky permit rules

Issuing office: agency
Kentucky Transportation Cabinet, Division of Motor Carriers
Issuing office: online system
Motor Carrier Portal permit purchase at apps.transportation.ky.gov/MotorCarrierPermits/PermitManagement.aspx
Issuing office: processing time
Annual permits: allow 10 to 14 business days for processing.
Issuing office: route check
Call Before You Haul route checking is available through westernais.org/callbeforeyouhaul.
Single trip fee USD: base fee USD
60
Single trip fee USD: duration
10 days
Single trip fee USD: note
A single-trip OW/OD permit costs 60 USD and is valid for 10 days. A payment service fee applies: 4 percent for credit card, or a 3 USD ACH fee. Metal commodities have a dedicated single-trip permit at 100 USD. How overweight fees scale by weight/distance beyond the base permit is not published on the fee page and is left blank rather than invented.
Annual permit eligibility
Annual permits are issued by category (non-divisible, farm, metal commodities, non-divisible steel, feed, manufactured home). Non-divisible and farm annual permits are tiered at under 14 ft wide and 14 to 16 ft wide. Allow 10 to 14 business days for processing.
Escort notes
Escort counts are stated as front/rear positions. Kentucky's escort page does not specify a mandatory law-enforcement (police) escort tier; recorded as unstated rather than invented. Heights over 15 ft 6 in require an OW/OD Proposed Route Survey (form TC 95-625) before movement.
Seasonal permits: summary
Kentucky issues extended-weight coal haul decals for vehicles hauling coal or coal by-products on the designated Coal Haul Highway System. Eligible vehicles must be registered to 80,000 lbs and carry a Kentucky commercial plate or IRP plate (out-of-state plated vehicles need current registration documentation). The extended gross-weight limits and the decal fee schedule are not published on the overview page and are left blank rather than invented. Annual farm permits (A03/A04) and annual feed permits (A09) cover agricultural movements.
Seasonal permits: coal haul decal
Yes
Statute
KRS 189.222 and 603 KAR 5:070 (size and weight limits); KRS 189.270 (permits and travel provisions).

Kentucky publishes its no-permit limits for width, height, length by configuration, and gross weight. Width and height match the common national figures, with one twist: car haulers get a taller height allowance on interstates and designated highways. Length depends on the configuration, from a single truck up to a tractor with two trailers. Once you leave the interstates, the legal width drops and combinations are held shorter, and gross weight is capped by highway class. The limits and the axle groups render below, each from the Division of Motor Carriers dimensions page.

Single-trip and annual permits

A single-trip permit covers one non-divisible load over the legal limits and runs for a short set window, and Kentucky sells a separate single-trip permit for metal commodities. For repeat work, annual permits come by category: non-divisible, farm, metal, steel, feed, and manufactured home, with farm categories priced lower and the widest loads higher. The single-trip fee components render below from the Division of Motor Carriers schedule, and a payment service fee applies on top, by card or bank transfer.

Escorts, route surveys, and travel windows

Escort requirements climb with size. A wider load picks up a rear escort, then front and rear, then two front and two rear at the widest, and the counts differ between multi-lane and two-lane highways. Tall loads take a front escort with a height pole, and the very tallest need an approved route survey before they move. On timing, most oversize loads may run around the clock unless the permit says otherwise, but manufactured home moves are daylight-only and off-limits on Sundays, and a handful of urban counties close weekday rush-hour windows. High winds stop the widest loads. The escort steps and the travel rules render below with their sources.

How to read this page

A value reading "Not confirmed" means we could not verify the figure on an official agency page at review time, so it stays open rather than guessed. Superload moves above the standard permit thresholds get individual review by the state; contact the permit office named on this page. For the rest of the Kentucky permit stack, see Kentucky trucking permits.

Frequently asked questions

What can I haul in Kentucky without an oversize permit?

Anything inside the published legal limits for width, height, length by configuration, and gross weight. Width and height match the common national figures, and car haulers get a taller height allowance. Off the interstates the limits tighten and gross weight is set by highway class.

How much is a single-trip oversize permit in Kentucky?

A single-trip permit carries a flat base fee for a short window, with a higher flat fee for a metal commodities trip, plus a small card or bank-transfer service charge. The exact amounts render below from the Division of Motor Carriers fee page.

When does an oversize load need an escort in Kentucky?

Once it crosses the published width, height, or length thresholds. Wider loads add escorts in steps, tall loads take a front escort with a height pole, and the tallest need an approved route survey first. The steps differ on two-lane roads versus multi-lane highways.

Can oversize loads travel any time in Kentucky?

Most may run around the clock unless the permit states otherwise, and Kentucky sets no holiday moratorium. Manufactured home moves are the exception: daylight only, no Sundays. Some urban counties also close weekday rush-hour windows, and high winds stop the widest loads.

Haul Handbook publishes educational information about trucking registration and compliance requirements. This is not legal, financial, or tax advice. Rules, fees, and deadlines change; confirm with the agency before you file or pay.