A bill that would require all vehicles in California to use their headlights during bad weather will soon face a final vote in the state’s Assembly.

Existing California law requires all vehicles to be equipped with headlights and to use them in darkness, with the exception of motorcycles. AB1854, introduced by Assemblyman Joe Simitian, D-Palo Alto, would also require use during inclement weather, which the bill defines as “a weather condition rendering a driver's visibility from a motor vehicle insufficient to clearly discern a person or another motor vehicle on the highway at a distance of 1,000 feet.”

Both the Transportation and Appropriations committees have OK’d the bill. It was sent to the full Assembly for a third reading and final vote May 10.