Smog Check stations in Contra Costa County, California
California's Bureau of Automotive Repair (BAR) lists 165 Smog Check stations in Contra Costa County, 2.8% of California's 5,945. 104 Test & Repair, 61 Test Only. 11 have a licence first issued in 2025 or 2026; the earliest original issue date in the county is from 1972. They are spread over 23 towns; the most are in Concord (34), Richmond (20), Walnut Creek (20).
Who needs a test, how often and what it costs: California emissions testing rules.
All 165 Smog Check stations
By town, then name. Click a column to sort.
| Station | Address | Type | BAR licence | Licence first issued |
|---|---|---|---|---|
| A 1 Stop Smog | 1810 Verne Roberts Circle, Antioch 94509 | Test Only | 309248 | 2024 |
| Affordable Tire Center | 11 Wilbur Ave, Antioch 94509 | Test & Repair | 267770 | 2012 |
| All Star Smog Antioch | 2413 A St, Antioch 94509 | Test Only | 307346 | 2023 |
| Antioch Chrysler Jeep Dodge | 1810 Auto Center Dr, Antioch 94509 | Test & Repair | 229684 | 2004 |
| Antioch Toyota Scion | 1817 Auto Center Drive, Antioch 94509 | Test & Repair | 146913 | 1989 |
| Autotek Repair | 2201 A St #a, Antioch 94509 | Test & Repair | 265582 | 2011 |
| Berkeley Auto Smog | 2900 Lone Tree Way, Antioch 94509 | Test Only | 289128 | 2017 |
| Blueline Smog | 225 East 18th Street, Antioch 94509 | Test Only | 315985 | 2026 |
| Fire House Smog | 2900 Lone Tree Way, Antioch 94509 | Test Only | 279070 | 2015 |
| Gumaros Auto Repair Inc | 1705 Auto Center Drive, Antioch 94509 | Test & Repair | 289177 | 2017 |
| Jb Smog Station | 2707 Pittsburg Antioch Hwy, Antioch 94509 | Test Only | 300603 | 2021 |
| King Auto Care | 801 Sunset Drive, B, Antioch 94509 | Test & Repair | 310978 | 2024 |
| Navid Vip Smog | 1803 W 10th St, Antioch 94509 | Test Only | 290297 | 2018 |
| Smog Guys | 1800 A Street, Antioch 94509 | Test Only | 292727 | 2018 |
| Smog Guys Plus | 1105 Auto Center Dr. Suite A, Antioch 94509 | Test Only | 287037 | 2017 |
| Valvoline Express Care | 3412 Hillcrest Ave, Antioch 94531 | Test & Repair | 252674 | 2007 |
| Reliance Auto Service And Repair | 2594 Willow Pass Rd, Bay Point 94565 | Test & Repair | 300285 | 2021 |
| Speedy Smog Check Center Llc | 2258 Willow Pass Road, Bay Point 94565 | Test Only | 309592 | 2024 |
| A-1 Stop Smog Brentwood | 8285 Brentwood Blvd, Brentwood 94513 | Test Only | 242611 | 2006 |
| Bill Brandt Ford | 8100 Brentwood Blvd, Brentwood 94513 | Test & Repair | 72548 | 1984 |
| Brentwood Muffler & Auto Repair | 8362 Brentwood Blvd, Brentwood 94513 | Test & Repair | 250257 | 2007 |
| Brentwood Smog Express | 8040 Brentwood Blvd Suite C, Brentwood 94513 | Test & Repair | 242032 | 2013 |
| Horizon Smog | 205 Oak Street, Brentwood 94513 | Test Only | 285702 | 2017 |
| Jimmys Smog | 8175 Brentwood Blvd, Brentwood 94513 | Test & Repair | 308284 | 2024 |
| Jj Auto Repair | 6300 Brentwood Boulevard Suit A, Brentwood 94513 | Test & Repair | 269591 | 2014 |
| Millennium Auto Care Inc | 6700 Brentwood Blvd, Brentwood 94513 | Test & Repair | 296955 | 2020 |
| Savers Auto Service | 6750 Brentwood Blvd Unit B, Brentwood 94513 | Test Only | 193766 | 1997 |
| Cruz In Smog Check | 3000 Taylor Ln Unit A, Byron 94514 | Test Only | 289170 | 2017 |
| Acme Auto Repair | 2825 The Alameda, Concord 94519 | Test & Repair | 211059 | 2000 |
| Acura Of Concord | 1340 Concord Ave, Concord 94520 | Test & Repair | 296305 | 2020 |
| Audi Concord | 1300 Concord Ave, Concord 94520 | Test & Repair | 288813 | 2017 |
| Auto Electric And Fuel Llc | 2655 Monument Blvd #b, Concord 94520 | Test & Repair | 298927 | 2021 |
| Auto Smog Center Llc | 2241 Monument Boulevard, Suite U, Concord 94520 | Test Only | 315636 | 2026 |
| Autos International Concord Llc Dba Autos International | 2201 Commerce Ave, Concord 94520 | Test & Repair | 308586 | 2024 |
| Bay Area Smog | 2575 Monument Blvd #f, Concord 94520 | Test & Repair | 243340 | 2012 |
| Bayside Smog Llc | 2849 Willow Pass Road, B, Concord 94519 | Test Only | 311507 | 2025 |
| Bmw Concord | 1970 Market Street, Concord 94520 | Test & Repair | 293728 | 2019 |
| Bmw Concord & Mini Authorized Service Of Concord | 1967 Market St, Concord 94520 | Test & Repair | 45566 | 1974 |
| Certified Smog | 2898 Willow Pass Road, Concord 94519 | Test Only | 313068 | 2025 |
| Clayton Auto Service | 4746 Clayton Rd, Concord 94521 | Test & Repair | 285959 | 2017 |
| Clayton Treat Automotive | 4300 Clayton Rd, Concord 94521 | Test & Repair | 206236 | 1999 |
| Concord Auto Experts | 2380 Willow Pass Rd, Concord 94520 | Test & Repair | 259585 | 2015 |
| Concord Chevrolet | 1330 Concord Ave, Concord 94520 | Test & Repair | 226170 | 2003 |
| Concord Honda | 1461 Concord Ave, Concord 94520 | Test & Repair | 194746 | 1997 |
| Concord Mazda | 1001 Burnett, Concord 94520 | Test & Repair | 286859 | 2017 |
| Concord Mitsubishi/concord Kia | 2199 Meridian Park Blvd, Concord 94520 | Test & Repair | 158006 | 1991 |
| Concord Nissan | 1290 Concord Ave, Concord 94520 | Test & Repair | 293683 | 2019 |
| Concord Smog Tune & Brakes | 2510 Monument Blvd, Concord 94520 | Test & Repair | 254146 | 2008 |
| Faster Auto Repair | 2655 Monument Blvd #j, Concord 94520 | Test & Repair | 304125 | 2022 |
| Four Corners Union 76 | 2025 Monument Blvd, Concord 94520 | Test & Repair | 232420 | 2004 |
| Future Ford Lincoln Of Concord | 2285 Diamond Blvd, Concord 94520 | Test & Repair | 235756 | 2004 |
| Golden Star Smog | 2484 Olivera Rd, Concord 94520 | Test Only | 266219 | 2011 |
| Hj Smog | 2111 Fremont Street, D, Concord 94520 | Test & Repair | 314814 | 2025 |
| Lehmers Concord Buick Gmc | 1905 Market St, Concord 94520 | Test & Repair | 1944 | 1972 |
| Lexus Of Concord | 2001 Market Street, Concord 94520 | Test & Repair | 208110 | 2000 |
| Mekatron Concord | 1771 Concord Ave, Concord 94520 | Test & Repair | 149090 | 1989 |
| Mri Auto Repair | 1115 Detroit Ave, Concord 94520 | Test & Repair | 296694 | 2023 |
| Smog Guys | 2094 Market Street, Concord 94520 | Test & Repair | 304899 | 2023 |
| Smog Star Express | 1130 Detroit Ave #1, Concord 94520 | Test Only | 277294 | 2014 |
| Solano Way Auto Repair | 2197 Solano Way, Concord 94520 | Test & Repair | 263302 | 2010 |
| Super Station | 1650 Monument Blvd, Concord 94520 | Test & Repair | 293848 | 2019 |
| Toyotapro Auto Care | 1700 Concord Ave, Concord 94520 | Test & Repair | 291763 | 2018 |
| Autotech Blackhawk | 3600 Camino Tassajara, Danville 94506 | Test & Repair | 292861 | 2020 |
| Danville Auto Center | 195 Hartz Ave, Danville 94526 | Test & Repair | 278116 | 2018 |
| Danville Service Center | 152 W Linda Mesa, Danville 94526 | Test & Repair | 212938 | 2004 |
| El Cerrito Honda | 11755 San Pablo Ave, El Cerrito 94530 | Test & Repair | 305386 | 2023 |
| El Cerrito Star Smog | 10439 San Pablo Ave, El Cerrito 94530 | Test Only | 221700 | 2002 |
| Foreign Auto Clinic Inc | 6315 Stockton Avenue, El Cerrito 94530 | Test & Repair | 221785 | 2002 |
| Pauls Shop | 10787 San Pablo Ave, El Cerrito 94530 | Test & Repair | 45509 | 1974 |
| Plaza Auto Service Inc | 6801 Fairmount Ave, El Cerrito 94530 | Test & Repair | 164085 | 1992 |
| R & R Auto Service | 6700 Fairmount Ave, El Cerrito 94530 | Test & Repair | 226044 | 2003 |
| Smog Depot Test Only | 11847 San Pablo Ave, El Cerrito 94530 | Test Only | 298404 | 2020 |
| Smogsters | 10791 San Pablo Ave, El Cerrito 94530 | Test Only | 297484 | 2020 |
| Burrough & Sons Automotive Inc | 5154 Sobrante Avenue, El Sobrante 94803 | Test & Repair | 225825 | 2003 |
| El Sobrante Smog Test Center | 5020 Appian Way, El Sobrante 94803 | Test Only | 306720 | 2023 |
| Kensington Smog Repair And Fuel | 304 Arlington Ave, Kensington 94707 | Test & Repair | 286424 | 2017 |
| California Smog | 3500 Mt Diablo Blvd Suite # 1, Lafayette 94549 | Test Only | 267476 | 2011 |
| Cartech | 3356 Mt. Diablo Blvd, Lafayette 94549 | Test & Repair | 281177 | 2015 |
| Ace Auto Smog | 3600 Pacheco Blvd, Martinez 94553 | Test Only | 297729 | 2020 |
| Contra Costa Electric Inc | 825 Howe Rd, Martinez 94553 | Test & Repair | 153298 | 1990 |
| Guys Smog Inc | 906 Alhambra Avenue, Martinez 94553 | Test & Repair | 258456 | 2012 |
| Just Smog It | 3830 Pacheco Blvd, Martinez 94553 | Test Only | 295579 | 2019 |
| Robert's Auto Care And Fleet Service | 3935 Alhambra Ave, Martinez 94553 | Test & Repair | 254843 | 2026 |
| Robert's Smog Test Only | 5050 Pacheco Boulevard, Unit #4, Martinez 94553 | Test Only | 311757 | 2025 |
| M S C Smog | 1500 Canyon Rd, Moraga 94556 | Test Only | 134618 | 2005 |
| Moraga Smog | 1135 Moraga Way, Moraga 94556 | Test Only | 275789 | 2014 |
| Rheem Valley Automotive | 455 Center St, Moraga 94556 | Test & Repair | 254496 | 2008 |
| Als Auto Repair | 5290-A Neroly Road, Oakley 94561 | Test & Repair | 235123 | 2004 |
| East Bay Smog | 5660 Main Street, Suite 102, Oakley 94561 | Test Only | 286216 | 2017 |
| Waynes Smog Inspection Station | 3605 Main Street, Oakley 94561 | Test Only | 236208 | 2004 |
| Orinda Test Only Smog Station | 22 Bryant Way, Orinda 94563 | Test Only | 267398 | 2011 |
| Pacheco Auto Care | 5815 Pacheco Blvd, Pacheco 94553 | Test & Repair | 289824 | 2018 |
| Pacheco Smog | 5301 Pacheco Blvd, Pacheco 94553 | Test Only | 262992 | 2010 |
| Accutech Auto Care | 550 San Pablo Ave, Pinole 94564 | Test & Repair | 224088 | 2003 |
| Prof Smog | 730 San Pablo Ave Bldg 5 #1, Pinole 94564 | Test Only | 205725 | 1999 |
| Square Deal Garage | 2500 San Pablo Ave #c, Pinole 94564 | Test & Repair | 135426 | 2017 |
| All Star Ford | 3800 Century Way, Pittsburg 94565 | Test & Repair | 271032 | 2012 |
| All Star Hyundai | 3950 Century Court, Pittsburg 94565 | Test & Repair | 263308 | 2019 |
| County Smog Llc | 2250 Freed Way, Nc, Pittsburg 94565 | Test Only | 315027 | 2026 |
| Espinoza Auto Experts | 540 Garcia Ave # D, Pittsburg 94565 | Test & Repair | 290051 | 2018 |
| Express Smog Test Only | 2145 Railroad Ave Unit A, Pittsburg 94565 | Test Only | 253888 | 2008 |
| Joe Auto Smog | 2201 Harbor Street Unit D, Pittsburg 94565 | Test & Repair | 298697 | 2022 |
| Los Medanos College | 2700 E Leland Rd, Pittsburg 94565 | Test & Repair | 124062 | 1986 |
| Pittsburg Smog | 901 East 14th Street, Pittsburg 94565 | Test Only | 250761 | 2007 |
| Quality Smog | 2180 Piedmont Way Unit #c, Pittsburg 94565 | Test Only | 286499 | 2017 |
| Amar Auto Repair And Smog Check | 1855 Contra Costa Blvd Unit A, Pleasant Hill 94523 | Test & Repair | 304128 | 2022 |
| Pleasant Hill Smog Dog | 1250 Contra Costa Blvd., Pleasant Hill 94804 | Test Only | 298004 | 2020 |
| Pleasant Hill Star Smog | 2686 Pleasant Hill Rd, Pleasant Hill 94523 | Test Only | 299347 | 2021 |
| Vip Smog Center Inc | 2049 Contra Costa Blvd #a, Pleasant Hill 94523 | Test & Repair | 231347 | 2004 |
| Walnut Creek Automotive | 1855 Contra Costa Blvd Ste. D, Pleasant Hill 94523 | Test & Repair | 305381 | 2023 |
| Advanced Smog Inc | 12569 San Pablo Ave, Richmond 94805 | Test & Repair | 308281 | 2024 |
| Ben's Auto Repair | 4836 Bissell Ave, Richmond 94805 | Test & Repair | 280654 | 2020 |
| Everest Auto Service | 3211 Macdonald Avenue, Suite A, Richmond 94804 | Test & Repair | 315867 | 2026 |
| Hanlees Hilltop Gmc | 3255 Auto Plaza, Richmond 94806 | Test & Repair | 283481 | 2016 |
| Hanlees Hilltop Toyota | 3233 Auto Plaza Dr, Richmond 94806 | Test & Repair | 181947 | 1995 |
| Hilltop Chrysler Jeep Dodge Ram | 3291 Auto Plaza, Richmond 94806 | Test & Repair | 195401 | 1998 |
| K & L Auto Expert Inc | 4401 Macdonald Ave #a, Richmond 94805 | Test & Repair | 262174 | 2010 |
| Khos Auto Repair | 418 23rd St, Richmond 94804 | Test & Repair | 240210 | 2014 |
| Los Primo's Smog | 1011 13th St #a, Richmond 94801 | Test Only | 287692 | 2017 |
| Magallanes Automotive | 221 6th Street, Richmond 94801 | Test & Repair | 220941 | 2002 |
| Michael C Stead Inc Dba Hilltop Ford Kia | 3280 Auto Plaza, Richmond 94806 | Test & Repair | 185180 | 1995 |
| Ozden Auto Repair | 864 23rd St, Richmond 94804 | Test & Repair | 258691 | 2009 |
| Richmond Smog | 12923 San Pablo Ave Ste A, Richmond 94806 | Test Only | 289714 | 2018 |
| Richmond Star Smog | 12267 San Pablo Ave, Richmond 94805 | Test Only | 303990 | 2022 |
| Sam Auto Express | 100 South 23rd St, Richmond 94804 | Test Only | 267457 | 2011 |
| Savys Auto Service | 12910 San Pablo Ave, Richmond 94805 | Test & Repair | 168023 | 1992 |
| Smog Express Richmond | 12440-A San Pablo Ave., Richmond 94805 | Test Only | 267529 | 2011 |
| Star Smog | 997 23rd Street, Richmond 94804 | Test Only | 273724 | 2013 |
| Super Star Smog Station | 648 23rd Street, Richmond 94804 | Test Only | 294632 | 2019 |
| Superior Smog | 401 23rd St #b, Richmond 94804 | Test Only | 275655 | 2014 |
| Rodeo Autotech | 650 Parker Ave, Rodeo 94572 | Test & Repair | 248418 | 2007 |
| A+ Smog | 2750 Rumrill Blvd. Unit B, San Pablo 94806 | Test Only | 237635 | 2006 |
| El Amigo Smog | 3024 Giant Rd, San Pablo 94806 | Test Only | 277041 | 2014 |
| Raza Smog | 1371 23rd Street # D, San Pablo 94806 | Test Only | 292332 | 2018 |
| Red Star Smog Station | 1440 23rd Street, San Pablo 94806 | Test Only | 312020 | 2025 |
| Texas Gas & Smog | 3363 San Pablo Dam Rd, San Pablo 94803 | Test & Repair | 288496 | 2018 |
| Above All Smog | 2045 San Ramon Valley Blvd, San Ramon 94583 | Test Only | 285495 | 2016 |
| Ace Auto Repair & Tire | 2560 San Ramon Valley Blvd, San Ramon 94583 | Test & Repair | 300381 | 2021 |
| Bestech Smog Check | 2400 San Ramon, San Ramon 94583 | Test Only | 299675 | 2021 |
| Clear Blue Test Only Smog Station | 2850 Crow Canyon Road, San Ramon 94583 | Test Only | 241700 | 2006 |
| Diablo Auto Care | 15 Beta Court, San Ramon 94583 | Test & Repair | 220846 | 2002 |
| San Ramon Smog | 2350 San Ramon Valley Blvd, San Ramon 94583 | Test Only | 235543 | 2004 |
| San Ramon Valley Import Center | 31 Beta Ct # G, San Ramon 94583 | Test & Repair | 292939 | 2019 |
| Smog King | 19 Beta Court, San Ramon 94583 | Test Only | 231551 | 2004 |
| Walts Danville Service Inc | 3211 F Fostoria Way, San Ramon 94583 | Test & Repair | 164197 | 1992 |
| Aamco Walnut Creek | 1410 Autocenter Dr, Walnut Creek 94597 | Test & Repair | 244643 | 2016 |
| Diablo Subaru Of Walnut Creek | 2646 N Main St, Walnut Creek 94597 | Test & Repair | 274710 | 2019 |
| Dirito Brothers Walnut Creek Vw | 2020 N Main St, Walnut Creek 94596 | Test & Repair | 180334 | 2014 |
| German Sport | 1400 Autocenter Dr, Walnut Creek 94597 | Test & Repair | 296714 | 2020 |
| Gordon Smog Test & Lube Center | 1520 Third Avenue Ste C, Walnut Creek 94596 | Test & Repair | 232440 | 2013 |
| Joe's Foreign Automotive | 2830 N Main Street, Walnut Creek 94597 | Test & Repair | 284995 | 2016 |
| Lithia Pre-Owned Center Of Walnut Creek | 1840 N Main St, Walnut Creek 94596 | Test & Repair | 295890 | 2019 |
| Mercedes Benz Of Walnut Creek | 1301 Parkside Drive, Walnut Creek 94596 | Test & Repair | 242307 | 2005 |
| N Service Auto Repair & Service | 1145 Bont Lane, Walnut Creek 94596 | Test & Repair | 279687 | 2015 |
| Quick Star Smog | 1790 Ygnacio Valley Rd Unit B, Walnut Creek 94598 | Test Only | 286218 | 2019 |
| Rossmoor Chevron Autocare | 1998 Tice Valley Blvd, Walnut Creek 94595 | Test & Repair | 238404 | 2005 |
| Smog N Dash | 2040 N Main St #26, Walnut Creek 94596 | Test Only | 268878 | 2012 |
| Smog Star Express | 1611 Newell Avenue, Walnut Creek 94596 | Test Only | 316715 | 2026 |
| Star Smog | 1225 Parkside Drive, Walnut Creek 94596 | Test Only | 271379 | 2013 |
| Toyota Walnut Creek | 2100 North Broadway, Walnut Creek 94596 | Test & Repair | 289121 | 2017 |
| Walnut Creek Cadillac | 2390 N Main St, Walnut Creek 94596 | Test & Repair | 80143 | 1980 |
| Walnut Creek Chrysler Jeep Dodge Ram | 2404 N Main St, Walnut Creek 94596 | Test & Repair | 170632 | 1993 |
| Walnut Creek Ford | 1800 N Main St, Walnut Creek 94596 | Test & Repair | 149297 | 1989 |
| Walnut Creek Honda | 1707 North Main Street, Walnut Creek 94596 | Test & Repair | 98921 | 1982 |
| Walnut Creek Smog Incorporated | 1515 3rd Avenue, Walnut Creek 94597 | Test & Repair | 299621 | 2021 |