S.F. No. 4641 Summary

• Removes the August 1, 2022 deadline for commissioner approval of supplemental warning systems on school buses, allowing previously approved systems to continue indefinitely.

• Establishes mandatory performance standards for supplemental warning systems including use of amber and red signal colors limited to white, amber, and red.

• Requires supplemental amber warning lights to activate only with overhead amber lights and supplemental red warning lights to activate only with overhead red flashing lights.

• Mandates automatic activation of supplemental warning systems when prewarning flashing amber signals, stop-signal arm, or flashing red signals are activated.

• Requires supplemental warning lights to flash using either a randomized pattern or alternating with corresponding overhead lights at 60-120 flashes per minute, mounted in pairs at the same level as wide as practicable above bumper level.