What a Smog Check Should Cost in Los Angeles County
The test fee itself is small. What actually moves your total is whether you need a STAR station, whether you're exempt, and what happens if you fail.
Written and reviewed by Nicholas Velez, Founder, Car Dogs · Updated August 14, 2026
Los Angeles County runs California's smog program under the Enhanced Area rules, which means some vehicles here must test at a STAR-certified station rather than any licensed shop. That single distinction affects where you can go and, sometimes, what the visit costs.
What moves the price
- STAR station requirement: DMV directs certain vehicles — often those with a prior smog problem or that were randomly selected — to a STAR-certified test-only or test-and-repair station rather than any BAR-licensed shop.
- Test-only stations can't perform repairs, which removes one conflict of interest but doesn't set the price by itself — pricing still varies shop to shop.
- Vehicle type: gasoline, diesel, and hybrid vehicles are tested differently, and diesel trucks over certain weights follow separate rules.
- Model-year exemptions: newer vehicles under the DMV's current cutoff pay a smog abatement fee at registration instead of testing — check your renewal notice for your car's status.
- Retest fees if the car fails and needs a second visit after repair.
Who's exempt and who's directed to STAR
California exempts gasoline vehicles for their first several model years, and fully electric vehicles are exempt entirely; hybrids with a gasoline engine are generally not exempt just for being hybrids. Your DMV renewal notice will say whether you're due for a test this cycle and whether you're directed to a STAR station specifically.
Los Angeles County is one of California's Enhanced Areas, so a share of vehicles here get routed to STAR stations regardless of preference — check your notice before assuming any shop will do.
If your car fails
- Get the specific failed system or emission from the printout, not just "failed smog."
- Common causes in LA's stop-and-go traffic include a loose gas cap, an aging oxygen sensor, or a check-engine light that's been on for a while — get the code read before approving repairs.
- California's Consumer Assistance Program can help cover repair costs or offer vehicle retirement for qualifying low-income owners — see the BAR's website for current eligibility.
How to tell if a quote is fair
A repair quote should tie directly to the specific failure on your printout. If a shop proposes work without referencing what actually failed, ask them to show you the printout first.
The short version
Check your DMV renewal notice to see if you're exempt or directed to a STAR station, and get the failure printout before approving any repair.
Common questions
- Why was I told to go to a STAR station instead of any smog shop?
- Los Angeles County is an Enhanced Area under California's smog program, and DMV directs certain vehicles — often based on emissions history or random selection — to STAR-certified stations specifically. Check your renewal notice for your vehicle's requirement.
- Are electric vehicles exempt from smog checks in LA County?
- Yes, fully electric vehicles are exempt from the biennial smog inspection statewide, including in Los Angeles County.
- What if I can't afford the repair to pass smog?
- California's Bureau of Automotive Repair runs a Consumer Assistance Program that can help with repair costs or vehicle retirement for qualifying vehicles and income levels — check bar.ca.gov for current terms.
Official sources
Rules and fees change. Always confirm current requirements with the agency before you file or pay.
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