Assembly member Phil Tang introduced a state bill on Thursday that would give the California Department of Motor Vehicles more ways to go after companies that illegally operate autonomous vehicles.

Under the bill, the DMV would be able to authorize police to impound the vehicles without permits and fine companies up to $25,000 per vehicle, per day of violation. The DMV would also be able to prohibit companies in violation of the law from applying for an autonomous vehicle permit for two years. Under the current law, companies that operate self-driving cars without a permit only get an infraction.