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HB 1367

Improving motorcycle safety by authorizing the use of the right shoulder of limited access roadways.

2025-2026 Regular Session Introduced by Andrew Barkis and 6 co-sponsors

HB 1367 legalizes motorcycles using right shoulders on Washington highways during congestion, aiming to improve rider safety but raising enforcement and collision risk questions.

Public hearing in the House Committee on Transportation at 4:00 PM.
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Bill Summary · HB 1367

Legislative bill overview

HB 1367 authorizes motorcyclists to use the right shoulder of limited access roadways (highways) in Washington state, a practice commonly known as "shoulder splitting" or "lane filtering." The bill would legalize what is currently prohibited under state traffic law, allowing motorcycles to travel on highway shoulders when traffic is congested.

Why is this important

This policy change directly affects motorcycle safety and traffic flow on congested highways. Proponents argue it reduces accidents by allowing motorcyclists to escape dangerous situations in stop-and-go traffic, while opponents worry it may increase collision risks and create enforcement challenges. The decision involves balancing alternative transportation modes against highway safety standards.

Potential points of contention

  • Safety effectiveness uncertainty: Research on shoulder use shows mixed results—some studies indicate reduced injury risk for motorcyclists, while others document increased accident rates and conflicts with other vehicles
  • Enforcement and liability concerns: Law enforcement faces challenges distinguishing legal shoulder use from unsafe driving; unclear who bears liability if accidents occur
  • Driver awareness and acceptance: Other motorists unfamiliar with the practice may create dangerous interactions; some view it as cutting in line during traffic

Compiled from official sources — confirm details with the bill’s official record.

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