No, lane splitting remains illegal in Idaho as of 2026, with no legislative or Idaho Transportation Department (ITD) rulemaking to authorize it. Idaho’s traffic statutes, particularly Title 49-601(1), prohibit motorcyclists from overtaking vehicles within the same lane, leaving no legal framework for lane filtering or splitting. While neighboring states like Utah and Montana permit limited lane filtering, Idaho has not followed suit, despite advocacy from rider groups. The ITD’s 2025 safety report reaffirmed the ban, citing insufficient data on crash reduction benefits and concerns over driver unpredictability in urban corridors like Boise or Coeur d’Alene.
Key Regulations for Lane Splitting in Idaho
- Statutory Prohibition: Idaho Code § 49-601(1) explicitly bars motorcycles from occupying the same lane as another vehicle, including lane splitting or filtering.
- Local Enforcement Priorities: Law enforcement agencies, including the Boise Police Department, prioritize citations for lane violations under municipal ordinances mirroring state traffic laws.
- Zero Tolerance in 2026: No exemptions exist for low-speed lane splitting, as confirmed by the Idaho Transportation Department’s 2025 legislative update, which rejected proposed amendments to permit limited filtering in congested traffic.