Concerning motor vehicle weight fees applicable to motorcycles.

SB 5309 establishes a flat $15 weight fee for motorcycle registrations in Washington State, replacing the previous weight-based system for motorcycles. This fee applies to all motorcycles regardless of their scale weight and is paid in addition to standard vehicle registration fees. The revenue typically funds transportation projects (under RCW 46.68.415), but would redirect to a "Connecting Washington" account if state agencies implement carbon-intensity fuel standards without new legislative approval. The bill affects motorcycle owners during registration, simplifying fees compared to the tiered system for other vehicles.