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Contra Costa County tag office

Published: 15.04.2023

Contra Costa County tag office info

Contra Costa County tag office is a government agency responsible for vehicle registration and titling services in Contra Costa County, California. It is the go-to place for all your vehicle-related needs, whether you need to register a new car, renew your vehicle registration, or transfer ownership of a vehicle. Below are some of the services provided by the Contra Costa County tag office:

  • Vehicle registration: You can register your vehicle for the first time at the Contra Costa County tag office. This includes cars, trucks, motorcycles, trailers, and boats.

  • Vehicle renewals: If you need to renew your vehicle registration, you can do so at the Contra Costa County tag office. They will provide you with a new registration sticker to put on your license plate.

  • Title transfers: If you are buying or selling a vehicle, you need to transfer the title of the vehicle to the new owner. The Contra Costa County tag office can help you with this process.

  • Disabled parking placards: If you have a disability, you can apply for a disabled parking placard at the Contra Costa County tag office. This will allow you to park in designated disabled parking spaces.

When visiting the Contra Costa County tag office, be sure to bring all the necessary documents with you, including proof of insurance, the vehicle title, and your driver's license. The office is open during regular business hours and may offer online services as well.

Contra Costa County Tag Office Contact Details

The Contra Costa County Tag Office is responsible for vehicle registration and titling within the county. For any queries or assistance, the following contact details can be used:

Postal Address

Address Line City State Zip Code
P.O. Box 631 Martinez CA 94553

Phone Numbers

  • Main line: (925) 313-1126
  • Fax: (925) 313-1125

Office Hours

Day Opening Hours
Monday 8:00 AM - 4:30 PM
Tuesday 8:00 AM - 4:30 PM
Wednesday 8:00 AM - 4:30 PM
Thursday 8:00 AM - 4:30 PM
Friday 8:00 AM - 4:30 PM

Note: The office remains closed on weekends and County-observed holidays.

For more information and updates on the services offered by the Contra Costa County Tag Office, visit their official website.

Contra Costa County tag office services

The Contra Costa County tag office provides a range of services aimed at helping vehicle owners easily manage their registration and titling needs. These services include:

  • Vehicle Registration: The tag office allows individuals to register their vehicles, which is necessary for legally driving on California roads. This includes registering new and used cars, renewing registrations, and transferring ownership.

  • Titling Services: When a vehicle changes ownership, it's important to properly transfer the title. The tag office can help individuals complete these transfers and obtain new titles.

  • Specialty License Plates: For those looking to personalize their vehicle, the tag office offers a variety of specialty license plates. Options include personalized plates, disability plates, and specialized plates supporting various causes and organizations.

  • Registration Renewals: It's important to renew your vehicle's registration on time to avoid fees and penalties. The tag office allows for convenient registration renewal, either online or in-person.

  • Smog Inspections: In California, vehicles are required to undergo smog inspections to ensure they meet emissions standards. The tag office can help individuals schedule and complete these inspections.

  • Vehicle Release Forms: In certain situations, such as a vehicle impound or repossession, individuals may need a vehicle release form to retrieve their vehicle. The tag office can provide these forms.

In summary, the Contra Costa County tag office offers a range of services aimed at simplifying vehicle registration and titling processes for individuals in the area.


Author: Michael Davis
Bio: Michael is a civil servant based in the United States with a deep understanding of property tax. He uses his expertise to educate homeowners and investors on the intricacies of the property tax system through his blog. Michael believes in empowering his readers with knowledge to make informed decisions about their property taxes. When he's not working, Michael enjoys hiking and exploring the great outdoors.