Food trucks combine the liability risks of both a restaurant and a commercial vehicle operation. You face exposure from foodborne illness, vehicle accidents, propane explosions, and employee burns. An LLC is also typically required to obtain a food service permit, commercial parking agreements, and event vendor contracts. San Francisco is home to ~120K businesses and has a population of 874K, making it a thriving market for food trucks. Forming your LLC in CA provides personal asset protection and positions your food trucks business for growth in the San Francisco metro area.