States
California
San Francisco

Emissions Testing in San Francisco, California

Find 35 licensed smog check stations in San Francisco. Browse test-only centers, STAR-certified locations, and shops offering registration renewal inspections. Requirements in California vary by vehicle type and model year.

35 stations
San Francisco, CA
View California requirements
PA

Pacific Auto Works

4.6 · 82 reviews
Auto repair shop · 564 Bryant St, San Francisco, CA 94107

Pacific Auto Works offers smog check and vehicle inspection in San Francisco, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
JA

JT's Auto Repair

4.6 · 84 reviews
Auto repair shop · 3601 Lawton St, San Francisco, CA 94122

JT's Auto Repair offers emissions testing and smog check services in San Francisco, California. View hours and details o...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
SH

Smog Haus

4.6 · 30 reviews
Smog inspection station · 854 Ellis St, San Francisco, CA 94109

Smog Haus offers smog check and vehicle inspection in San Francisco, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
U&

U & I Auto Safety Center

4.6 · 31 reviews
Auto repair shop · 758 Bryant St, San Francisco, CA 94107

U & I Auto Safety Center offers smog check and vehicle inspection in San Francisco, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
DA

Don's Auto Services

4.6 · 82 reviews
Auto repair shop · 899 San Jose Avenue, San Francisco, CA 94110

Don's Auto Services offers smog check and vehicle inspection in San Francisco, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
CA

Clean Air Smog Check Star Certified Station

4.6 · 194 reviews
Smog inspection station · 368 11th St, San Francisco, CA 94103

Clean Air Smog Check Star Certified Station provides emissions testing and smog check services in San Francisco, Califor...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
VS

Valencia Smog

4.5 · 67 reviews
Smog inspection station · 1298 Valencia St rm c, San Francisco, CA 94110

Valencia Smog offers emissions testing and smog check services in San Francisco, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
PC

Precise Chevron Star Smog

4.5 · 26 reviews
Smog inspection station · 1890 19th Ave, San Francisco, CA 94122

Precise Chevron Star Smog offers emissions testing and smog check services in San Francisco, California. View hours and...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
OT

Official Test Only Smog Station

4.5 · 127 reviews
Smog inspection station · 388 Potrero Ave, San Francisco, CA 94110

Official Test Only Smog Station offers emissions testing and smog check services in San Francisco, California. View hour...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
UA

Unique Automotive

4.5 · 87 reviews
Auto repair shop · 4650 Mission St, San Francisco, CA 94112

Unique Automotive offers a smog check and vehicle inspection in San Francisco, California. View hours and details about...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
RS

Richmond Smog Service

4.5 · 61 reviews
Smog inspection station · 1934 Clement St, San Francisco, CA 94121

Richmond Smog Service offers emissions testing and smog check services in San Francisco, California. View hours and deta...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
CS

Castro Smog

4.4 · 63 reviews
Smog inspection station · 376 Castro St, San Francisco, CA 94114

Castro Smog offers smog check and vehicle inspection in San Francisco, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis

City Guide

Emissions Testing in San Francisco, California

Finding a reliable place for emissions testing or a smog check in San Francisco is easier than ever. Our directory lists 35 licensed and verified emissions testing stations in the city, including STAR-certified and test-only centers where required. Whether you're renewing your registration or completing an out-of-state transfer, this page helps you quickly locate nearby inspection facilities and understand what applies in California.

Do Vehicles in San Francisco Need an Emissions Test?

Most drivers in San Francisco follow the same rules set by California. Requirements vary based on vehicle age, fuel type, and county. If you're unsure whether your ZIP code or vehicle model year requires a test, use this directory to browse local stations or review our state-specific testing requirements.

Types of Smog Check Services Available

  • Standard emissions tests for gasoline vehicles
  • OBD-II inspections for 1996+ model years
  • Tailpipe testing for older vehicles where required
  • Diesel emissions testing
  • Hybrid and electric vehicle smog checks
  • Registration renewal support
  • Test-only or STAR-certified inspections (state dependent)

Each listing includes the station's address, contact information, operating hours, and service notes to help you choose the right location.

Smog Check Tips for San Francisco Drivers

Before heading to a testing center in San Francisco, make sure:

  • Your check engine light is off
  • Your vehicle has completed recent drive cycles
  • The gas cap is properly sealed
  • The engine is fully warmed up
  • You have your registration and ID

Following these steps greatly increases the chance of passing on the first attempt.

Why Use This Directory?

Drivers in San Francisco rely on this directory because it provides a complete list of verified emissions testing stations, map-based navigation for quick lookup, accurate state-updated requirements, support for gasoline, diesel, hybrid, and electric vehicles, and clear explanations of exemptions and frequency rules.

View California Requirements

Frequently Asked Questions About Emissions Testing in San Francisco, California

Get answers to common questions about smog checks, testing requirements, and finding the right station in San Francisco.

You can use this directory to find licensed emissions testing and smog check stations in San Francisco. Browse the listings above to see addresses, contact details, and services offered, then choose the station that's most convenient for your part of the city.
It depends on California's emissions testing program, your registration ZIP code, and your vehicle's model year and fuel type. Some areas of California require testing, while others do not. Check your California state page in this directory or your DMV's website to see if your address in San Francisco is in a testing area.
Most emissions programs require testing every one or two years, usually tied to registration renewal. Some vehicles are tested more frequently, and others are exempt for the first few model years. Use the California state page to see the current 2025 schedule for your vehicle type and registration area.
Prices vary by station and vehicle, but most emissions tests in San Francisco fall within the typical range for California. Many stations list pricing by phone or on their website, and some offer coupons or discounts. Use the listings above to contact a station directly for current pricing.
Requirements depend on vehicle type (gasoline, diesel, hybrid, electric), model year, and weight, as well as where your vehicle is registered in California. In many states, fully electric vehicles are exempt, newer vehicles are temporarily exempt, and certain older or specialty vehicles may have different rules. Check the California state page for the latest 2025 requirements.
Most stations in San Francisco ask you to bring your current registration or renewal notice, a valid photo ID, and proof of insurance if required by California. Make sure your vehicle is warmed up and the check engine light is off before you arrive.
If your vehicle fails, the station will provide a report showing the reason for failure (such as stored OBD-II codes or high tailpipe readings). In most programs, you must complete repairs and pass a retest before renewing your registration. Some states offer repair assistance, cost caps, or waivers. Details are listed on the California page in this directory.
In some states, certain vehicles are directed to specific station types (such as STAR or test-only centers). Unless your renewal notice or DMV instructions say otherwise, you can usually choose any licensed station in San Francisco. If you're unsure, ask the station when you call or check the instructions on your renewal notice.

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