Limos, Shuttles, and Buses: Consumer Information Center The CPUC licenses and regulates private “passenger carriers,” such as limousines, airport shuttles, and charter bus companies. Hiring a Limo, Shuttle, or Bus If you are planning to hire a “passenger carrier,” you can call the CPUC at 1-800-894-9444 for more information. We can tell you if the carrier is licensed and insured, and whether consumers have filed any complaints against the company. You can also search our List of Companies to find out if a company is licensed. For 10 tips on renting a limousine, please read our consumer advisory. The Way to a Smooth Household Move or a Dream Ride For more advice on hiring a limousine, shuttle, or charter bus, please see our Passenger Transportation Information Sheet. Feb. 2016: Letter on Prom Limo Rentals from CPUC President and State Superintendent of Public Instruction Filing a Complaint If you have a billing, service, or safety problem with a “passenger carrier,” and talking with the carrier does not resolve the problem, you can file a complaint with the CPUC. For more information and detailed instructions for filing a complaint, please see our Limo, Shuttle, or Bus Complaint web page.For additional information on limousines, airport shuttles, and charter bus companies, please see our Passenger Carriers web page.