South Carolina To Ban Trucks From Left Lanes - Heavy Duty Trucking
South Carolina has enacted a law banning trucks from using the left lane on interstate highways, effective immediately. This applies to all commercial motor vehicles operating in the state.
Aforeworn detected this change in the Trucking / FMCSA Compliance space on July 8, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated High urgency. All truck drivers and motor carriers operating in South Carolina, including owner-operators, small fleets, and large carriers. should confirm how it applies to their specific situation before acting. There is a time constraint attached: Immediate compliance required; enforcement began upon enactment.. Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors Trucking / FMCSA Compliance continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.
What changed
Trucks are now prohibited from driving in the left lane on South Carolina interstates, except when preparing for a left exit or when traffic conditions require it.
Who it affects
All truck drivers and motor carriers operating in South Carolina, including owner-operators, small fleets, and large carriers.
What you must do
Update driver training materials and route planning to ensure compliance with the left-lane ban. Drivers must stay in the right lane unless overtaking or exiting left.
Deadline
Immediate compliance required; enforcement began upon enactment.
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