Yes, Underglow lighting is legal in South Dakota when installed on private property, provided it complies with state vehicle equipment regulations and local ordinances. The South Dakota Department of Public Safety (DPS) permits non-flashing, non-red, and non-blue underglow lights, but prohibits their use on public roads. Recent 2026 legislative shifts emphasize stricter enforcement of unauthorized lighting to curb distracted driving risks.
Key Regulations for Underglow Lighting in South Dakota
- Color Restrictions: Underglow lights must not display red, blue, or any flashing colors, as these are reserved for emergency vehicles under SDCL 32-17-1.1. Violations may result in citations under vehicle equipment statutes.
- Operational Limits: Lights may only be activated when the vehicle is stationary or parked on private property. Active use on public roads violates SDCL 32-17-14, which prohibits non-standard lighting.
- Local Ordinance Compliance: Municipalities like Sioux Falls and Rapid City enforce additional restrictions via local traffic codes. For example, Sioux Falls’ Municipal Code § 10-1905 bans underglow lighting entirely within city limits, requiring prior approval for exceptions.
Enforcement falls under the jurisdiction of the South Dakota Highway Patrol and local law enforcement agencies, which conduct periodic vehicle inspections. Non-compliance may lead to fines up to $100 or vehicle impoundment under SDCL 32-17-15. Motorists should consult the South Dakota DPS Vehicle Equipment Manual for updates, as 2026 amendments may introduce further clarifications on permissible light configurations.