California has not enacted a mileage tax — yet. But Assembly Bill 1421 advances planning for a road usage charge widely presented as a replacement for the gas tax. Without a binding repeal, it risks becoming an additional tax. At 6–9 cents per mile, drivers could pay $900–$1,350 per vehicle yearly, or up to $2,700 for two-car households — a major burden on working commuter communities like Compton.