Emissions Testing in Concord, California

Find 13 licensed smog check stations in Concord. Browse test-only centers, STAR-certified locations, and shops offering registration renewal inspections. Requirements in California vary by vehicle type and model year.

13 stations

Concord, CA

View California requirements

Certified Smog

5.0 · 4 reviews

Smog inspection station · 2898 Willow Pass Rd, Concord, CA 94519

Certified Smog provides emissions testing and smog check services in Concord, California. View hours and details.

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Smog Guys

4.9 · 202 reviews

Smog inspection station · 2094 Market St, Concord, CA 94520

Smog Guys provides smog check and vehicle inspection services in Concord, California. View hours and details.

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Bayside Smog

4.8 · 234 reviews

Smog inspection station · 2849 Willow Pass Rd # B, Concord, CA 94519

Bayside Smog offers emissions testing and smog check services in Concord, California. View hours and details on this tru...

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H Smog

4.8 · 380 reviews

Smog inspection station · 2111 Fremont St Unit C, Concord, CA 94520

H Smog offers reliable smog check and vehicle inspection services in Concord, California. View hours and details.

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Green Star Smog

4.7 · 36 reviews

Smog inspection station · 2134 Market St, Concord, CA 94520

Green Star Smog offers emissions testing and smog check services in Concord, California. View hours and details.

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Golden Star Smog

4.7 · 73 reviews

Smog inspection station · 2484 Olivera Rd, Concord, CA 94520

Golden Star Smog offers emissions testing and smog check services in Concord, California. View hours and details.

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Concord Smog & Gas

4.6 · 47 reviews

Smog inspection station · 2898 Willow Pass Rd, Concord, CA 94519

Concord Smog & Gas offers emissions testing and smog check services in Concord, California. View hours and details.

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Clayton Auto Service

4.5 · 195 reviews

Auto repair shop · 4746 Clayton Rd, Concord, CA 94521

Clayton Auto Service provides reliable emissions testing and smog checks in Concord, California. View hours and details.

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Bay Area Smog

4.4 · 29 reviews

Smog inspection station · 2575 Monument Blvd, Concord, CA 94520

Bay Area Smog offers a reliable smog check and vehicle inspection in Concord, California. View hours and details.

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Clayton-Treat Automotive

4.4 · 93 reviews

Smog inspection station · 4300 Clayton Rd, Concord, CA 94521

Clayton-Treat Automotive offers smog check and vehicle inspection in Concord, California. View hours and details.

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Smog Star Express - STAR Test Only Station

4.3 · 451 reviews

Smog inspection station · 1130 Detroit Ave #1, Concord, CA 94520

Smog Star Express in Concord California provides quick emissions testing and smog check services. View hours and details...

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Super Station

4.1 · 59 reviews

Auto repair shop · 1650 Monument Blvd, Concord, CA 94520

Super Station offers emissions testing and smog check services in Concord, California. View hours and details for vehicl...

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City Guide

Emissions Testing in Concord, California

Finding a reliable place for emissions testing or a smog check in Concord is easier than ever. Our directory lists 13 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 Concord Need an Emissions Test?

Most drivers in Concord 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 Concord Drivers

Before heading to a testing center in Concord, 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 Concord 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 Concord, California

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

You can use this directory to find licensed emissions testing and smog check stations in Concord. 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 Concord 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 Concord 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 Concord 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 Concord. If you're unsure, ask the station when you call or check the instructions on your renewal notice.

Can't find what you're looking for? Contact our customer support team