Smog Check Requirements in San Mateo County, California

San Mateo County, located on the San Francisco Peninsula, includes cities such as San Mateo, Redwood City, Daly City, South San Francisco, Burlingame, Foster City, San Bruno, Pacifica, Millbrae, Belmont, Hillsborough, Menlo Park, and Half Moon Bay. As part of California's commitment to reducing air pollution, vehicles registered in San Mateo County are subject to the state's Smog Check Program. This program ensures that vehicles meet emissions standards to contribute to cleaner air and a healthier environment.

Understanding Smog Check Requirements

Who Needs a Smog Check?

In San Mateo County, the following vehicles typically require a smog inspection:

  • Gasoline-powered vehicles: Model year 1976 and newer.
  • Diesel-powered vehicles: Model year 1998 and newer with a GVWR of 14,000 pounds or less.
  • Hybrid vehicles: Model year 1976 and newer.
  • Alternative-fuel vehicles: Model year 1976 and newer.

Smog checks are required every two years during vehicle registration renewal. A smog check is also needed when:

  • A vehicle is sold or transferred to a new owner.
  • Registering an out-of-state vehicle in California for the first time.

Exemptions from Smog Checks

The following vehicles are exempt from smog check requirements:

  • Gasoline-powered vehicles: Model year 1975 and older.
  • Diesel-powered vehicles: Model year 1997 and older or with a GVWR over 14,000 pounds.
  • Electric vehicles: Fully electric vehicles are exempt.
  • Motorcycles: Currently exempt.
  • Trailers: Not subject to emissions testing.

Additionally, gasoline-powered vehicles eight model years old or newer are exempt from biennial smog checks but must pay a smog abatement fee. For ownership transfers, vehicles four model years old or newer are exempt but must pay a smog transfer fee.

Types of Smog Check Stations

  • Test-Only Stations: Perform smog inspections only and do not offer repair services.
  • Test-and-Repair Stations: Perform smog checks and can make necessary repairs if your vehicle fails.
  • STAR Certified Stations: Meet higher performance standards. Some vehicles are directed by the DMV to test at STAR stations.

Preparing for a Smog Check

  • Regular Maintenance: Keep up with oil changes, filters, and spark plugs.
  • Check Engine Light: Must be off, or the car fails automatically.
  • Warm Up Vehicle: Drive 15 minutes before the test.
  • Proper Tire Pressure: Helps during the dynamometer portion of the test.

What If Your Vehicle Fails?

  • Review the technician's report to identify issues.
  • Make necessary repairs at a certified station.
  • Retest your vehicle.

San Mateo County residents may qualify for the Consumer Assistance Program or the Vehicle Retirement Program to help with repair costs or retiring older vehicles.

Smog Check Stations in San Mateo County

San Mateo:

  • Star Smog - San Mateo
  • Star Smog Central
  • 21st Avenue Smog STAR Test Only
  • 4Less Smog Check

Belmont:

  • Golden State Smog Center
  • Smog Express Test Center

Burlingame:

  • Master Motors

Redwood City:

  • All Smog El Camino
  • Redwood City STAR Smog

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Conclusion

San Mateo County's commitment to air quality starts with responsible vehicle ownership. Use certified smog check stations, explore repair and retirement assistance programs, and stay proactive to keep California's air clean. For easy scheduling and price comparison, visit SmogCheck.net.