Sponsors
The bill makes it easier and cheaper for carriers to move large assembled vehicles by allowing longer truck/lowboy combinations and easing some equipment rules, but it raises road-safety concerns and could shift maintenance costs onto state and local governments.
Freight carriers, haulers, and transportation companies can move assembled highway vehicles and heavy loads using longer truck-tractor/lowboy combinations (up to 80 ft), improving route flexibility and likely reducing transport time and operating costs for carriers and shippers.
State governments would be required to allow longer truck-tractor/lowboy combinations (up to 80 ft), reducing permitting barriers for heavy-vehicle transport across jurisdictions.
Operators using lowboy trailers would no longer have to use rear overhang flags for affected loads, simplifying compliance and reducing minor equipment and operational costs for drivers and carriers.
Drivers, other road users, and transportation workers could face increased safety risks because longer vehicle combinations may be harder to maneuver and operate on roads not designed for them, raising crash and incident potential.
Removing rear overhang flag requirements can reduce the conspicuity of protruding loads, increasing collision risk in low-visibility or congested conditions for drivers and other road users.
Local and state governments (and ultimately taxpayers) may incur additional costs to inspect, maintain, or upgrade roads and bridges to safely accommodate longer/heavier vehicle combinations.
Based on analysis of 2 sections of legislative text.
Allows tractor–lowboy trailer combos with front overhang <4 ft and rear overhang <6 ft to be exempt from state length limits under 80 ft and exempts lowboy trailers from rear-overhang flag rules.
Introduced April 9, 2025 by Tom Barrett · Last progress April 9, 2025
Amends federal highway safety law to define “lowboy trailer,” bars States from enforcing length limits under 80 feet for tractor–lowboy trailer combos that meet specific front and rear overhang measurements, and exempts lowboy trailers from the federal rear-overhang flag requirement. The change creates a narrow federal preemption of state length rules for these trailer combinations and removes one federal marking requirement for lowboy trailers.