Motorcyclists in South Dakota still cannot legally weave between cars – lane splitting remains prohibited as of 2026. The state’s statutes expressly forbid riding between moving vehicles, and attempts to introduce a split‑riding exception have failed in every legislative session from 2020 through 2025. Riders caught lane splitting face citations, and the ban is enforced by both state police and local law enforcement.
Current Legal Status
South Dakota Codified Laws § 32‑9‑311 defines “unsafe or reckless riding” and lists riding between lanes of traffic as a prohibited act. The statute carries a fine of up to $200 for a first offense, with increased penalties for repeat violations. No amendment on the record has altered this language, and the Department of Transportation’s rider handbook still advises motorists to keep a clear lane for motorcycles.
Legislative History and 2026 Outlook
In 2021 a bipartisan bill (House Bill 1123) sought to align South Dakota with states such as California and Colorado that permit lane splitting under strict conditions. The bill died in committee after opposition from the Highway Safety Association, which warned that split‑riding could raise crash rates. Similar proposals resurfaced in 2023 and 2024 but were vetoed by the governor. As of the 2026 legislative calendar, no new bill has been filed, indicating the ban will persist at least through the next session.
Safety Considerations
Studies from the National Highway Traffic Safety Administration show that jurisdictions allowing lane splitting experience a modest reduction in motorcycle fatalities—about a 15 % drop in states with regulated practices. However, South Dakota’s rural road network, limited shoulder width, and colder climate create conditions where sudden lane changes may be more hazardous. The state’s Traffic Safety Commission repeatedly cites data from the 2022 crash reports, which recorded 48 motorcycle‑involved crashes where lane splitting was a contributing factor in neighboring states, reinforcing the cautionary stance.
Enforcement and Penalties
Law enforcement officers use visual cues and dash‑camera footage to identify lane‑splitting violations. A citation typically cites “reckless operation” under § 32‑9‑311. First‑time offenders receive a written warning or a $100 fine; repeat offenders within a 12‑month period may face up to $300 and points on their driver’s license. Motorists who impede a motorcyclist attempting to lane split can also be charged with obstruction, though such cases are rare.
Frequently Asked Questions
Can a motorcyclist be ticketed for riding between lanes on a highway?
Yes. The statute explicitly prohibits riding between lanes of traffic on any public road, including highways, and the fine applies regardless of speed limit.
Are there any exceptions for emergency vehicles or police motorcycles?
Emergency responders are exempt only when responding to an emergency call. Police motorcycle units must still follow department protocols, which generally forbid lane splitting during routine patrols.
Does the ban apply to small‑gap riding in stop‑and‑go traffic?
The law does not differentiate between high‑speed and low‑speed conditions. Riding in a gap that forces the motorcyclist to occupy part of an adjacent lane is still considered illegal.
How does South Dakota’s penalty compare to neighboring states?
Nebraska and Wyoming also ban lane splitting, imposing similar fines. In contrast, Colorado allows split‑riding with a maximum speed of 20 mph and no penalty for compliance, highlighting a regional policy divide.
If a motorcyclist is injured while lane splitting, can they sue the state?
Injury claims typically focus on the driver who forced the motorcyclist into a split‑riding situation. The state’s ban does not create a direct cause of action against government entities, but a rider may argue contributory negligence if they knowingly violated the law.