Maximum gross weight on each jurisdiction’s own highway system. Select a state to open its page.
These ceilings apply on state routes only; 80,000 lb still governs the Interstate System absent a grandfathered exception.
The reference of record for US trucking regulation
Weight and dimension limits, hours of service, licensing and permits — for the federal system and all 52 jurisdictions. No figure is published without a citation to the statute or CFR section that establishes it, a link to the text of the law, a named reviewer and a verification date. Where no primary source has been confirmed, the value is withheld rather than estimated.
Reference sections
Gross, single-axle and tandem-axle limits for every jurisdiction, with the permit thresholds that sit above them.
The federal width rule is a ceiling and a floor at once — a state may impose neither more nor less than 102 inches on the National Network.
Driving-time limits, the 14-hour window, the 30-minute interruption, and the weekly caps that restart with 34 consecutive hours off duty.
Disqualification periods are a federal floor states cannot go below. A second major offence draws life, with reinstatement only permissive.
Federal law grants the permitting power, then hands the pen to the states. Thresholds, fees and escort rules are not federally harmonised.
Parts and accessories necessary for safe operation. Withheld until transcribed from the primary source — an unsourced page is worth less than no page.