What Are Kentucky DOT Truck Permits?
Kentucky DOT truck permits are state-issued authorizations that allow commercial vehicles to operate legally when they do not meet standard registration, weight, size, or fuel tax requirements.
These permits are commonly required for:
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Out-of-state carriers
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Overweight or oversize loads
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Temporary operations without IRP or IFTA
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Specialized hauling (construction, agriculture, equipment)
Who Needs a Kentucky DOT Truck Permit?
You may need a Kentucky DOT permit if your truck:
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Is not registered under IRP (International Registration Plan)
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Is not enrolled in IFTA
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Exceeds legal weight or size limits
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Is traveling temporarily through Kentucky
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Is hauling oversize, overweight, or superloads
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Is out-of-state but operating within Kentucky
Even intrastate carriers may require permits depending on vehicle weight, axle configuration, and cargo.
Common Types of Kentucky DOT Truck Permits
1. Kentucky Trip Permit
A Kentucky trip permit allows out-of-state trucks to operate temporarily without IRP registration.
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Typically valid for up to 72 hours
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Required for vehicles 26,001 lbs or more
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Not a substitute for permanent registration
2. Kentucky Weight Distance (KYU) Permit
Kentucky is a weight-distance tax state, meaning many trucks must pay KYU taxes instead of IFTA.
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Required for trucks 60,000 lbs or more
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Applies to both intrastate and interstate carriers
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Can be temporary or annual
3. Kentucky Oversize & Overweight Permits
Issued for loads exceeding legal limits:
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Width over 8′6″
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Height over 13′6″
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Length over 65 feet
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Weight exceeding 80,000 lbs
Permits may include:
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Route restrictions
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Travel time limitations
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Escort vehicle requirements
4. Kentucky Temporary Registration Permits
Used when a truck is:
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Newly purchased
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Awaiting permanent registration
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Operating for a short duration
These permits are usually valid for a limited number of days and must be displayed properly.
5. Specialty Permits
Kentucky also issues permits for:
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Farm and agricultural trucks
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Logging vehicles
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Construction and equipment hauling
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Superloads (extremely large or heavy cargo)
How to Apply for Kentucky DOT Truck Permits
Most Kentucky DOT permits can be obtained:
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Online through https://www.kentuckytruckingonline.com/
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By phone (502) 842-1467
You’ll need:
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Vehicle and trailer information
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Axle weights and dimensions
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Route details
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USDOT number
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Carrier information
Kentucky DOT Permit Costs & Processing Time
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Trip permits: Usually affordable and processed same day
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Oversize/overweight permits: Fees vary by size, weight, and distance
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Superload permits: Higher fees and longer approval times
Processing can range from minutes to several business days, depending on permit type and load complexity.
Penalties for Not Having Proper Kentucky DOT Permits
Failure to obtain the correct permits can result in:
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Fines and citations
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Forced off-road or load adjustments
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Permit retroactive fees
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Delays and lost revenue
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DOT compliance issues affecting CSA scores
Kentucky actively enforces trucking regulations at weigh stations and roadside inspections.
Tips to Stay Compliant in Kentucky
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Verify IRP, IFTA, and KYU status before entering the state
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Double-check load dimensions and axle weights
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Carry printed or electronic permits at all times
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Follow approved routes exactly
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Renew permits before expiration
Final Thoughts
Kentucky DOT truck permits are not optional—they are a critical part of legal trucking operations in the state. Whether you’re hauling freight across state lines or moving specialized equipment, having the correct Kentucky permits protects your business and keeps your truck rolling.