STAA (Surface Transportation Assistance Act) (KRS 189.222)
- Legal overall length allows a 53 FT trailer (with any size tractor), on Interstates and Designated Highways.
- Legal overall length for Straight Trucks 45 FT
- Legal Width is 8 feet 6 inches.
- Legal Height is 13 feet 6 inches on all highways.
- Legal gross Weight for 5 or more axles is up to 80,000 lbs.
- Legal overall length for truck and trailer is 65 FT.
- Legal overall length for Straight Trucks is 26-1/2 FT.
- Legal Width 8 FT.
Carriers with non-divisible loads exceeding these dimensions are required to purchase an Overweight/Over-Dimensional permit. If you have questions regarding these dimensions, please call (502) 564-1257. You may also inquire about an Industrial Haul Permit at this number or contact the Highway District in which you anticipate hauling.
Kentucky Administrative Regulations
601 KAR 1:018 - Special Overweight or Over-Dimensional motor vehicle load permits
601 KAR 1:019 - Overweight or Over-Dimensional farm equipment
Weight Length and Escort Requirements
Overweight / Over-Dimensional Summary Document
This is a summary of the laws regarding motor carriers intended solely for informational use. It is not a reprint of any referenced Kentucky Revised Statute (KRS) or Kentucky Administrative Regulation (KAR) in its entirety and should not be used as such. The exact wording of Kentucky’s motor carrier laws can be viewed at www.lrc.ky.gov.
Our Overweight / Over-Dimensional Restriction list
is updated regularly. Be sure to check the restriction list before submitting an application for a permit. Sign up to receive automatic notifications when restrictions are updated.
For an alternate route other than the suggested detour, please visit the NTN Network
Visit our Overweight / Over-Dimensional Restriction List
There is no longer a "Holiday" travel restriction in Kentucky unless it is a Superload or a House move.
Hours of Travel
There is no Night time travel restriction in Kentucky. Manufactured homes are excluded from this policy, and are limited to daylight hours only.
Continuous travel (24-7) is permitted except the following:
- No Overweight / Over-Dimensional loads will be permitted to travel in Boone, Kenton, Campbell, Fayette, or Jefferson County on Monday through Friday between the hours of 7:00am - 9:00am or 4:00pm - 6:00pm
Manufactured homes may not travel at any time on Sunday and are restricted to travel Monday through Saturday, daylight hours only.
Note: An Overweight or Over-Dimensional load originating in Fayette County shall be exempt from rush hour traffic restrictions on Interstate 64 and Interstate 75 in Fayette County and on connecting routes to both interstates up to a distance of three (3) miles from the interstates.
Note: Truck Weight Classification Reports are updated weekly before start of business Monday.
No travel is allowed on the 2155/2262 bridge in Owensboro.
Mobile homes are allowed to travel during daylight hours only Monday through Saturday with no travel permitted on Sunday.
Effective March 18, 2005 due to HB 309.
Extended Weight Coal Haul Decal
For an Extended Weight Decal please visit KY IRP Online
Frequently Asked Questions